[1] Bishop Mark of Peć (hence Marko Pećki) belongs to a prominent place in the hesychast monastic hagiography from the time of Prince Lazar of Serbia and the Battle of Kosovo in 1389.
He left his autobiographical data in his Letter to commemorate Gerasim and Euphemia (Jefimija).
His father's secular name was probably George because he chose Gerasim as his new name for his new monastic way of life,[3] and as Hieromonk Gerasim, he went on to build the church of St. George, where Marko's mother lived in the same cloister with Euphemia.
Dedicated to church service, Marko received a monastic designation from Serbian Patriarch Jefrem (patriarch) in 1777 when he was only seventeen, the exact age for acceptance into monastic life.
He was appointed Hieromonk during Jefrem's second tenure in the Patriarchate of Peć in autumn of 1389 or in the spring of 1390.