 The Spanish Reconquista of this region was carry out by King James I of Aragon, it was no easy because of the important resistance put by the Muslim leader named Al Azraq whose troops even kill some king knights there.When the conquest was managed by the Christians this territories became part of the Rugat Baron properties given to Lord Bellvis till 1499, year in which were bought by the Duke of Gandia who keep a manor there, some parts of it still remain.Since then the town was named Castelló del Duc, the inhabitants were in the great majority moorish (moriscos), because of that in 1609 when King Felipe III sending off the moorish people from Spain, Castelló became underpopulated.