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.
Joscius continued on to Rome, where news of Hattin supposedly caused Pope Urban III to die of shock.
His successor Gregory VIII issued the bull Audita tremendi, calling for a new crusade and directed to the major European monarchs.
In England, Henry promulgated the Saladin tithe to pay for the crusade; this was perhaps influenced by the 1183 tax in Jerusalem, which Joscius may have mentioned to him at Gisors.
Henry was involved in a dispute with the Canons of the Church of the Holy Sepulchre over the election of a new Latin patriarch of Jerusalem, and had them arrested until Joscius intervened.