With striking hilltop castles, tall towers, and pretty heritage towns to visit, it is more than worth a trip to the Alentejo Region in south-eastern Portugal. The medieval castles in Beja, Mértola and Alcoutim receive fewer international visitors than the rest of the country which is why you should visit now, before word gets out.

There are so many castles and fortresses along Portugal’s border with Spain, that we’re showing you them over three posts. To read about some of the other magnificent castles in this region, read our posts The Fortified Towns of Monsanto and Marvão, and A Journey Through Elvas & Évora’s Rich Heritage.

One of these border cities with a rich history, is Beja. Unlike most of the castles we’ve seen along the Portuguese-Spanish border, the castle of Beja is not on a tall mountain or high rocky cliff, but rather on a small hill in the centre of old town. To make up for this lower elevation, they built a tall tower. In fact, it’s the tallest tower in Portugal.

Craning our necks, we looked up, way up to see the top of the 40 m (130 ft) tall Keep. In addition to its height, it is quite pretty, built with white marble from the nearby city of Estremoz. There are quite a few marble structures in the Alentejo region, and all of the marble came from Estremoz.

The castle was originally built in the 13th century and was modified several times over the next 200 years. It’s not large, in fact it’s only a short walk to patrol its perimeter. It is a nice looking castle though, and is in good condition.

Inside, what’s left of the castle is mostly its stately, stone walls except for the bright yellow Governor’s House that is now a museum.

Beside the castle are remains of the original walls of the fortified city. Porta Avis is a small arch that was originally built by the Romans in the 1st century. It was destroyed in the late 1800s, but in 1939 the granite blocks were discovered, and the arch was rebuilt. 

Republic Square is a nice spot in the centre of Old Town, where locals meet for coffee or lunch. At its side is an unusual looking church. The low roofed, multi-arched stone Misericordia Church (Igreja Misericórdia) was initially built to be butchers shop. Upon seeing it, the king decided it was too pretty for that purpose and declared that it would instead be a church.

One of the streets leading to Republic Square is topped with an old gate. Arco dos Prazeres (Arch of Pleasures) is on what used to be the main road from Lisbon. It was once a busy spot with horse drawn carriages riding under its gate. If you look closely, you can see that its base has since been altered to allow cars to pass.

The narrow streets around the castle still have a good variety of heritage buildings. Many are in need of a few repairs, but they are charming in their own rugged way. Beja doesn’t see many visitors, but as it becomes more widely known, hopefully some of these buildings will be restored.

Standing high above the Guadiana River, only 10 km or so from the Spanish border, is the ancient city of Mértola. The Guadiana River was once an important waterway, so this site was highly sought after for centuries. With a history dating back to Neolithic times, the oldest ruins that can be seen today are Roman. The next major residents were the Moors who built a Mértola Castle on the highest point of an impenetrable rocky point. Although not much is left of the castle, its exterior walls still have a commanding presence.

In the 13th century, when the Portuguese won control of this land, the Portuguese king awarded Mértola Castle to the Order of Santiago. They were a Spanish religious and military order in the Middle Ages that protected Christians on the Iberian Peninsula. This castle was later used by the Portuguese military who occupied it until the late 18th century.  

Beside the castle archeologists are slowly uncovering Roman ruins, including mosaic floors. Unfortunately, these ruins are currently blocked off to visitors.

In front of the castle is Main Church of Mértola (Igreja de Martiz). If its appearance looks different from other churches from this time, that’s because this one had its beginnings as a mosque. In the 13th century, it was converted to a church. Even before the Moors built a mosque, there was likely a Roman church on the site.

Spilling down the hillside are the whitewashed homes of the medieval town. Streets run parallel to each other on the slope of the hill. A few staircases allow you to get between the different levels of the tiered town, giving it a unique character. Bougainvillea drapes over many of the white walls, making the old town even prettier. It made us wonder why Mértola is far less visited than other historic towns in Portugal.

As early as Roman times, a wall encircled the town. Today that wall still exists and can be seen from many points in both the old and new parts of the city. The cutest view is of the clock tower which sits on a low point of the hill, not far above the Guadiana River.

A viewpoint across the river was our favourite spot. From this vantage point we could see the perfect setting of Mértola Castle high on a hill above its medieval town. We returned at night to see the town’s lights beautifully reflect off the river.

Guadiana is one of the longest rivers in the entire Iberian Peninsula. We followed its path from Mértola to Alcoutim where the river marks the border with Spain. From the river’s edge, we looked across to the village Sanlúcar de Guadiana in Spain. It’s a lovely view as the town fills in the river banks below the castle on a hill.

You can take a ferry across the river to visit the Spanish town.

Alcoutim is quite small but has a lot of charm. Only a small part of its castle remains, but its town makes up for it. Stark white buildings decorated with colourful flowers and its views of the calm river make it a nice spot.

Further along the border river we met Jo from Still Restless Jo and her husband for a walk. We climbed up through the hills above the rustic village of Laranjeiras where we had more pretty views of this long river.

With direct buses from Lisbon and Faro, reaching Beja is quite easy. Mértola also has a direct bus between it and Lisbon as well as Vila Real de Santo António, in Algarve. You can also travel by bus between Beja and Mértola. It is not as quick to reach Alcoutim by bus though. If you want to visit all three and explore more in the region, it would be much easier by car.

Map of southern Portugal

Mértola has a larger offering of hotels and guest houses than Beja. A few can be found right in the medieval village, which would be a great place to spend a night. When visiting Alcoutim it would be better to stay in Mértola or more popular cities on Algarve’s coast such as Tavira.

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To read more of our adventures in Portugal, click here.

Fediverse reactions

79 responses to “Discover The Medieval Castles Of Beja, Mértola & Alcoutim”

  1. This group of posts from Portugal has been so impressive. You’ve shown us so much of the country and its history. These towns in Alentejo look almost frozen in time.

    1. We were so impressed with almost every stop in Portugal. It’s historical sites are mostly very well maintained, especially the villages where usually, people are still living. Glad you’re enjoying Portugal Ken. Maggie

  2. Regarding the church that was intended as a butcher shop, I hope the butcher was compensated fairly for it and was able to have another nice structure built to purpose.

    1. It’s a lovely thought, but I doubt he was properly compensated at the time. I didn’t ever find information about where the butcher’s shop ended up. 😒

      1. Yep, that’s how monarchies do things.

  3. Oh wow. WOW …

    1. Thanks Selma, they are wow 😊Maggie

      1. Globetrotter, Ms. Maggie. I know you leave your heart everywhere you visit and then reclaim it when you share with us. You are so blessed and you bless us. I want to know you have a place you call home: where you park your boots and backpack and walk barefooted or toastedly ensocksed. I smile thinking of you there in front of a fire at this time.
        Thanks for exciting me with your travel stories this year. Merry Christmas (Christmas season is still ON) Happy Merry Everything
        And more miracles to you and family in the New Year. Here’s looking at you from Japan. 🙇🏻‍♀️

        1. That’s so kind of you Selma. As a matter of fact, I’m sitting in front of a toasty fireplace at home right now. Wishing you a wonderful 2025, Happy Merry Everthing to you too. 😊 Maggie

  4. So many lovely places on your Portugal trip. So many that just make us want to visit. You made sone very good decisions re destinations on this one, I’m sure you feel the same.

    1. Yes, we almost zoomed past them because they aren’t high on the ‘must-see’ lists, but we’re glad we did.

  5. So many beautiful castles and views Maggie. Glad to see how well preserved they are. Happy Monday. Allan

    1. They’re mostly very well preserved and the villages are still being lived in. It’s a great, under visited part of the country. Thanks Allan, Maggie

  6. Thanks for sharing these beautiful Mediterranean views and scenery. The castles are stunning, but the houses and towns are pretty too.

    1. Glad you enjoyed this part of Portugal. We loved exploring the castles and the pretty towns. Thanks! Maggie

  7. All three towns look lovely but Mértola especially so. I love the view across the river both by day and night. The style of the buildings in several of your photos (white with a deep coloured trim) reminds me of Paraty in Brazil – I think you’ve been there?

    1. Now that you mention it, the homes are similar Paraty, but I think because they’re on a steep slope we didn’t think of it. After travelling Portugal though, we can definitely see where the designs of Paraty’s homes came from. Thanks Sarah, Maggie

  8. It’s astounding that Beja and Mertola still have the ancient houses, castles, and walls. There appears to be no modern development. The Beja Castle looks amazing the way it looms at the end of a narrow Beja road. 🙂

    1. That’s one of the great parts of these historic towns, there aren’t many new, modern buildings spoiling the views. Thanks Nancy! Maggie

  9. Oh wow, the castles, ruins, and towers of Beja are simply mesmerizing Maggie! Another fantastic journey my friend! 😎📸🏰 Thanks for taking us along on this ride! 🚙🚗🚌

    1. Thanks Kym, there are so many castles in this part of Portugal, it’s so different from our everyday views isn’t it?! Thanks for coming along 😊 Maggie

      1. Oh Maggie, honey it’s like taking a trip to Disney World! Magnificent! 🤩🏰😘

  10. Wonderful photos and I love the feel of all three places Beja in particular, they seem from your excellent photos like walking through an outdoor museum, almost everywhere there are vistas and vignettes of the past archaeological heritage of these three towns.

    I like the views of the white-washed homes, especially your bird’s-eye photo of the Main Church of Mértola seen from above with the city in the background.

    You mentioned the church that was originally intended to be a butcher shop; the design seems fabulous. I love the striped pillars/columns out front.

    I agree that the rugged beauty of the towns adds to their charm, including the wonderful Bougainvillea on the outside walls and hanging pots/sconces.

    **Speaking of Bougainvillea, is it my imagination, or do the Bougainvilleas here remind me of your photos of Óbidos? Óbidos also seems to have a similar castle keep style and narrow outer city protective wall. Again, I could be wrong about that. I just remember the beautiful Bougainvillea in that town (Óbidos) from one of your shares this year.

    By the way, what is parking like? I see several cars in the photos on the narrow streets; it must be a challenge to find parking.

    I enjoyed this visit and your great details on the history of these three cities. You are so great at choosing some wonderful vistas to visit and share; I truly appreciate the amount of planning it must take to visit these amazing places. Blessings to you both. And as always, safe travels.

    1. Hi Suzette, many of these old towns in Portugal have done well to retain their historical buildings and are so fun to explore. Each has a little different story to tell, too. Mértola’s with its white buildings with Bougainvillea draped over is very similar to Óbidos. The main difference is that Mértola is on the hillside, but they both show the care taken by the owners of these old homes. Good memory by the way. 😊
      I think the locals drive on some of the streets, but we usually left our car outside of Old Town. We quickly learned that driving on the narrow streets is not enjoyable. Thanks for your gratitude observations and comments! Happy New Year! Maggie

      1. Thank you Maggie for your generous sharing of your travel journals and insights and your kind patience with my “musings” Blessing you to. Happy New Year. May 2025 be road of great adventures to the ends of the World.

  11. A fabulous collection of posts about Portugal, Maggie. Makes me want to visit, especially the lesser known places!

    1. Thanks Lynette, we found that many of these small, out of the way villages more enjoyable than some of the big famous sites. Glad you’re enjoying them 😊 Maggie

  12. Wow, what beautiful castles these are, and I can’t believe how quiet they all look!! They are truly hidden gems. For some reason I’m most drawn to your wonderful photos of the streets of Mértola!

    1. They are hidden gems. They’re not really that far away, but not many bother to visit them. Mértola was our favourite of this group too. Thanks Han!

  13. I wasn’t all that taken with Beja until we did the Roman festival, Beja Romana, there last year. That was great fun. I’ve always loved Mertola, which gets blazing hot in summer and has a wonderful Arabian fair. Alcoutim I’m always reluctant to share with strangers. It’s perfect just as it is. Many thanks for the mention, Maggie. Still trying to live that walk down.

    1. Beja is quite different from the other cities in the area, but it has a bit of rough around the edges charm. Mertola though is adorable. I should have kept your Alcoutim a secret. 😊 The walk was good, the worst part was the bar was closed! 😅

  14. I didn’t know about these places, I guess Portugal is too rich in beautiful places for them all to be publicised.

    1. That’s very true. We could have stopped in many more in this area too 😊

  15. I do love these sites and their touches of flowers. They show life continuing there.

    1. That’s true, and it’s so nice to see them still being lived in without major changes to the outside look of the homes. Thanks Mary! Maggie

  16. Such a beautiful area. When you’ve finished your tales of Portugal, I wonder if you’d be able to recommend one area over another. How long did these towns take you?

    1. It’s tough to pick favourites, but there are a few that stand out in the end. We only had a half day each in Beja, and Alcoutim because they’re pretty small. A day in Mertola is enough to see everything.

      1. That’s very helpful, thank you. I have another son who’ll be travelling next year and is looking for ideas. I keep sending them your posts.

          1. I did also suggest Romania after seeing your posts from there.

          2. Oh that’s a great one too 😊

  17. Wow those are some quite impressive castles and citadels

    1. They are indeed, thanks Thomas 😊

  18. You have seen Portugal from one end to the other, and found some amazing locations in the process; well done! Beautiful photos too!.

    1. We have and we’re not done yet. There is so much to see in this little country. Thanks Tricia, Happy New Year to you both! Maggie

  19. Mértola really looks pretty. Your photos taken from that viewpoint across the river capture the medieval charm of the town beautifully. How amazing that you met Jo! Meeting the people we know through blogging makes the connection we have made online even more real and meaningful.

    1. It was so great to meet Jo and to then to have her and her husband as personal guides was great. Mértola is very pretty, and situated perfectly on the hill. It is one of the least visited historical towns in Portugal and yet is one of our favourites! Thanks Bama

  20. Wish you a full of joy and energy year in 2025!

    1. Thank you, Happy New Year!!

  21. How lovely to explore these heritage towns without the crowds. That alone is a good enough reason to visit! The castle in Beja is impressive. Beautiful set of shots. Thanks for sharing. Enjoy the rest of the holidays and wishing you many more adventures in 2025! Cheers, Linda.

    1. It was nice for us that no one was there, but surprising, because the towns are all so cute. Happy New Year to the three of you!! Maggie

  22. These are some great castles and towns! I think Beja’s my favourite – the castle looks interesting, while the town has a rundown charm to it. With the pretty azulejos, it looks as though it could be really beautiful with a bit of restoration work.

    1. Beja would be amazing if they did a little restoration to those homes. It does have that rustic charm, but it’s sad to see those old buildings in rough shape. The tower is beautiful so it should have more visitors. Thanks and Happy New Year!! Maggie

      1. Thanks Maggie 😊 Happy New Year to you both, too!!

  23. More great towns and castles, though I think Mertola is my favorite. I love that a building was deemed too pretty to be a butcher and instead turned into a church. I wonder how the butcher felt about that. He was probably looking forward to working in such a nice environment. You had a blog buddy meet-up! How fun. Had you met each other before?

    1. It was great to have a blog buddy meet up, we have never met before. It’s only my 2nd so I’m far behind you! I do feel sorry for the poor butcher, although as a vegetarian, I’m not too disappointed 😊 Happy 2025!!

  24. Wow, so many beautiful castles! That’s why I love visiting Portugal so much as it doesn’t matter what region you visit, you will always be soaked in ancient history, architecture, and culture. On the last trip to Portugal, we had plans to visit Beja as it offers a unique blend of history, culture, and tranquil living, but we ran out of time. Thanks for sharing, and have a wonderful last day of the year! May your adventures continue and grow even bigger in 2025. Thank you for being an amazing friend here on WordPress, Maggie. Happy New Year! 🙂 Aiva xx

    1. There’s so much to see in this area alone isn’t there. I would say Mertola has more to offer, but Beja has its own rugged charm. Thanks Aiva, all the best for 2025 to you and your family. Maggie

      1. Thank you 😊 xx

  25. We’re heading to Porto in a few weeks. But now that I’ve seen these photos, I want to add southern Portugal. Cheers!!

    1. You’ll love Porto! There’s a lot to do around there too, but there’s a lot to do in all of Portugal so it deserves multiple trips. Enjoy😊 Maggie

      1. Yeah, I have a feeling I’m really going to love it. :o)

  26. Hi, Maggie! I get so excited when I see your posts in the reader because you photos are all so grand. Can’t wait to see the next post. 🙂

    Happy New Year!

    1. Thanks so much Kymber, Portugal has so many wonderful spots to share 😊

  27. ⬻☆♡꧁ღ✬♡☆🎀   𝒽𝒶𝓅𝓅𝓎 𝓃𝑒𝓌 𝓎𝑒𝒶𝓇   🎀☆♡✬ღ꧂♡☆⤖

  28. Lulu: “Happy New Year!”
    Java Bean: “¡Feliz año nuevo!”
    Charlee: “An orange house! Our Dada approves!”

    1. Happy New Year to everyone!! Maggie

  29. These are totally our type of places to visit. Without this post we would have not known these areas. Thanks and cheer!

    1. You will love this part of Portugal. There are so many more cities and towns that we didn’t have time for.

  30. Great pictures! I really love all the castles. It is quite amazing that they are still standing and so well preserved after so long of a history. Happy New Year Maggie 🙂

    1. Thanks Meg, Happy New Year! There are so many castles in this regions it is unbelievable, and most are in quite good condition.

  31. After spending time in Portugal last year, I think I could live there, but not in the touristy cities/towns.

    Great photos and wonderful history. Wishing you the very best for 2025!

    1. Outside of Lisbon and Porto, we didn’t find it too busy with tourists. I could easily move to Portgual. Happy 2025!! Maggie

  32. I do love Castles and Traditional villages. Mértola looks very nice, you are giving me more reasons to visit Portugal. Great post Maggie!

    1. This eastern border of Portugal is made for you then. There are more castles than you could ever visit. Mértola was a facourite spot for us. Thanks for your comment! Maggie

  33. […] For more information about these fascinating cities and town, click on the link to the following posts: The Fortified Towns of Monsanto & Marvão; A Journey Through Elvas & Évora’s Rich Heritage, Discover The Medieval Castles of Beja, Mértola & Alcoutim. […]

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