Fodor's Expert Review Palácio dos Duques de Cadaval
The palace is readily identified by two massive stone towers that have pointed battlements. These towers, once part of a medieval castle that protected the town, were later incorporated into this former residence of kings João I and João IV. A small ground-floor gallery contains historic documents, paintings, and the unusual Flemish-style bronze tomb of Rui de Sousa, a signatory of the Treaty of Tordesillas. In 1494 the treaty divided the world into two spheres of influence: Spanish and Portuguese.