High Quality Content by WIKIPEDIA articles! Juan Manuel, Prince of Villena (5 May 1282 – 13 June 1348) was a Spanish medieval writer, nephew of Alfonso X of Castile, son of Juan Manuel, Lord of Villena and Beatrice of Savoy. He inherited from his father the great Seigneury of Villena, receiving the titles of Lord, Duke and lastly Prince of Villena.