Alfonso IV
In 1261 King James I granted temporal authority over the castle and the villa of Jérica to his son, James I of Jérica. In 1272 he confirmed this power in his will. In 1284 James II of Jérica succeeded him, and in 1286, King Alfonso IV of Aragon confirmed James' control of the villa. It was governed by James II until 1321, when it passed to his son Jaime (James III of Jérica). James III received permission of King Alfonso IV to strengthen and fortify the existing walls.