Eremitarum Benedictus Joannes Matthaei Isaac and Christiani
Martyrological notice
The historical Roman Martyrology commemorates Eremitarum Benedictus Joannes Matthaei Isaac and Christiani on 12 November. The Latin notice identifies the record as martyr. The source places the commemoration at Apud Casimiriam, in Polonia.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Apud Casimiriam, in Polonia, sanctorum Martyrum Eremitarum Benedicti, Joannis, Matthaei, Isaac et Christiani; qui a praedonibus, divino intenti servitio, dire vexati sunt et gladiis occisi.