Castle of Castelo Rodrigo, Medieval castle in Castelo Rodrigo, Portugal.

Castelo Rodrigo castle is a fortress with an oval layout that wraps around the village, featuring four circular turrets positioned on the western and southern sides. The turrets show partial collapse at their tops, marking the passage of centuries.

Alfonso IX of León built the first castle after conquering the village, and it was completed or nearly so by 1209, when Castelo Rodrigo received its first charter. The 1297 Treaty of Alcañices secured the territory for Portugal, and King Denis then rebuilt the defences, adding the keep, moats, cistern and barbican. During the 1383–1385 crisis the castle's defences deterred the Master of Aviz's forces, and the town was punished for backing Beatriz and John I of Castile.

The gates carry names tied to medieval moments and local legends. The Door of the Sun, Door of Alverca, and Door of Betrayal show how the fortress was woven into the daily storytelling of the community.

The site is accessible via a small road leading directly to the fortress area, and pathways offer several viewpoints overlooking the surrounding landscape. The grounds have uneven sections, so sturdy footwear is helpful when moving through different parts of the castle.

During the 1383–1385 crisis, the alcaide of Castelo Rodrigo sided with D. Beatriz and John I of Castile, so the town's coat of arms was displayed inverted on the keep's facade as punishment. The town was also made administratively subordinate to Pinhel and its fair date was changed in 1386.