Castelo de Almourol Castelo de Almourol , the civil parish of Praia do Ribatejo in Portugal 알모우롤성 The Castle of Almourol is a medieval castle atop the islet of Almourol in the middle of the Tagus River, located in the civil parish of Praia do Ribatejo, 4 kilometres (2.5 mi) from the municipal seat of Vila Nova da Barquinha, in Portugal's Centre Region. The castle was part of the defensive line c..