The fuero of Fuentidueña de Ocaña Historical milestone · Fuentidueña de Tajo, Las Vegas, Madrid Image of Fuentidueña de Tajo, not of the place itself. The town, then called Fuentidueña de Ocaña, received the fuero that fixed the rights of its residents. The castle of la Alarilla, taken by Alfonso VI in 1085, would end up in the hands of the Order of Santiago. 1328 Photo: esetena (CC BY 3.0) What to see and do in Fuentidueña de Tajo