Great-martyr Mercurius (224 – 250) was a Christian saint and martyr. Born Philopater in the city of Eskentos in Cappadocia, Eastern Asia Minor, and his original name means "lover of the Father". Saint Mercurius is also known by the name Abu-Seifein, which in Arabic means, "the holder of two swords", referring to a second sword given to him by Archangel Michael.
