Almourol

It is believed that this castle was constructed on the site of a primitive Lusitanian Castro that was later conquered by the Romans during the 1st century B.C.E. It was later remodeled by successive invading forces, including the Alans, Visigoths and Moors, although it is unclear when the actual castle was established.
The castle of Almourol is one of the more emblematic and cenographic medieval military monuments of the Reconquista, and best representation of the influence of the Knights Templar in Portugal. When it was conquered in 1129, by forces loyal to the Portuguese nobility and placed in the trust of Gualdim Pais, the master of the Knights Templar in Portugal, who rebuilt the structure.