From the earliest days of Christianity in Armenia, Jerusalem was an important centre of pilgrimage, culture, and faith. An Armenian hierarchy free from the authority of the Imperial Greek church had existed in Jerusalem possibly from the time of Justinian and an Armenian episcopacy from the time of the Arab conquests. According to Armenian tradition, first recorded in M. Č‘amč‘ian's History of the Armenians, in 1311 Bishop Sargis of Jerusalem (sed. 1281–1313) dramatically changed the nature of that office, when he declared himself and his entire charge independent of both the spiritual overlordship of the Catholicossate of Sis and the political protection of the Armenian kingdom founded in Cilicia. The catalyst for the rupture was the Cilician Church's decision in favour of union with Rome taken with the encouragement of the Armenian monarchy at the Council of Sis in 1307. According to Č‘amč‘ian, Bishop Sargis, rejecting the Armenian kingdom's demands of obedience, turned to the Mamluk Sultan of Egypt and received from him an edict declaring that henceforth the Armenian bishop of Jerusalem would be able to exercise full Patriarchal rights, namely, the ability to appoint bishops and to use the red patriarchal seal to ratify documents.