- City in the province of Alentejo, Portugal.
- Important castle, part of a strategic network of castles defending Portugal from Castilian invasion.
- During the dynastic crisis of 1383-1385, Nuno Álvares Pereira made his headquarters in Estremoz, owing to its strategic location.
Not to Scale

![Estremoz Castle. [Photo by courtesy of João Correia] View of Estremoz castle, Portugal. Steps leading on to a gateway opening a passage through the walls of the castle. [Photo by courtesy of João Correia]](https://fernaolopes.fcsh.unl.pt/sites/default/files/styles/lopes_gallery_style/public/FL-PICS-J_Correia-Estremoz_castle.jpg?itok=c5aGkU7P)