David Wilmshurst, Jacob and Yeshu ruled concurrent with one another until 1519, whilst Aphrem Barsoum notes that Athanasius bar Subay simultaneously claimed the patriarchal office until his death likely at some point between 1514 and 1518. In a homologia (confession) found at Edessa, it is recorded that Jacob ordained deacon Abd Allah for the church of Saint Mary at Amida and deacon Ghazal for the churches of Saint Ahudemmeh and Saint Thomas at Mosul on 6 August 1512. He served as patriarch of Antioch until his death in 1517 or 1519. Works A number of works written by Jacob on various subjects have survived, including a Beth Gazo (Za'faran MS. 124), written in 1488. Several lines of his poetry on the subject of repentance are attested in a grammar book at Midyat, as well as his comments on some festivals are contained in a homologia (Paris Library MS. 112). He also wrote a historical tract including the chronicles of David of Homs, that were later found at the monastery of the Cross. Jacob is further credited with a manuscript on the canons of baptism, marriage, and repentance, found at the library at Edessa. References Notes Citations Bibliography Syriac Patriarchs of Antioch from 512 to 1783 15th-century Oriental Orthodox archbishops 16th-century Oriental Orthodox archbishops Syriac writers 1510s deaths Year of birth unknown 16th-century Syriac Orthodox Church bishops 15th-century Syriac Orthodox Church bishops Oriental Orthodox bishops in the Ottoman Empire 16th-century writers from the Ottoman Empire 15th-century births 16th-century calligraphers 15th-century calligraphers 15th-century poets 16th-century poets