The grant of the castle of Olocau to the Order of the Hospital Historical milestone · Olocau del Rey, Els Ports, Castellón Image of Olocau del Rey, not of the place itself. Alfonso II of Aragon handed the Hospitallers of Saint John the fortress of Olocau, a Christian outpost in the middle of frontier country; the town would receive a settlement charter from the infante don Pedro in April 1271. agosto de 1180 Photo: Tàfol Nebot (CC BY-SA 3.0) What to see and do in Olocau del Rey