Joscius, Archbishop of Tyre

Joscius (also Josce or Josias) (died 1202) was Archbishop of Tyre in the crusader Kingdom of Jerusalem in the late 12th century.

He was a canon and subdeacon of the church of Acre, and became Bishop of Acre on November 23, 1172. He was a member of the delegation from the Latin church of the Crusader states at the Third Lateran Council in 1179. While in Europe he also visited France on behalf of King Baldwin IV, to negotiate a marriage between Hugh III, Duke of Burgundy, and Baldwin's sister Sibylla, but the marriage never took place; Sibylla instead married Guy of Lusignan the next year.

Joscius succeeded William of Tyre as Archbishop of Tyre sometime before October 21, 1186, when he is first attested in that position. Meanwhile, Sibylla and Guy had become Queen and King of Jerusalem, against the ambitions of Raymond III of Tripoli, who hoped to have his own supporters succeed to the throne. In Tripoli, Raymond allied with the Muslim sultan Saladin against Guy. In April 1187, Guy, hoping to establish a truce, sent an embassy to Raymond, led by Balian of Ibelin, Gerard de Ridefort, Roger de Moulins, Reginald of Sidon, and Joscius. The embassy was attacked by a portion of Saladin's army, which had entered the Kingdom at Raymond III's fief of Tiberias, and was defeated at the Battle of Cresson on May 1. Balian and Reginald had stopped at their own castles on the way, but Joscius was present at the battle.

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