The Church honors the memory of the martyrs Marcian and Martius on October 25

According to the Eparchy of Wrocław-Koszalin, Marcian served as a reader and Martius as a subdeacon in Constantinople. Both men worked as notaries for Patriarch Paul, a role that required recording the patriarch's messages and official correspondence.

The Eparchy reports that the two men were persecuted by the Arian leader Macedonius and the official Philip following the exile of Patriarch Paul. After being imprisoned and starved, Marcian and Martius were executed by sword in 355. The Roman Martyrology also recognizes these martyrs on this day.