Jacobus
Martyrological notice
The historical Roman Martyrology commemorates Jacobus on 15 July. The Latin notice identifies the record as bishop and confessor. The source places the commemoration at Nisibi, in Mesopotamia.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Nisibi, in Mesopotamia, natalis sancti Jacobi, ejusdem urbis Episcopi, magnae sanctitatis viri. Hic, miraculis et eruditione clarus, unus fuit, sub persecutione Galerii Maximiani, ex numero Confessorum, qui in Nicaena deinde Synodo perversitatem Arii, Homousii oppositione, damnarunt; cujus et sancti Alexandri Episcopi oratione ipse Arius condignam suae iniquitatis mercedem, effusis visceribus, Constantinopoli recepit.