Eustatius I of Pec
Our father among the saints Jevstatije (also Eustathius, Eustace or Eustatius) I of Pec (Serbian: Свети Јевстатије архиепископ српски) was the archbishop of Serbia from 1279 to 1286. His feast day is January 4. The Church also remembers him on August 30 with The Synaxis of Serbian Hierarchs, a celebration of the archpastors of the Serbian Church of the thirteenth - fourteenth centuries.
He was born into a noble family in Budimlje county. As a youth he joined the Holy Archangel Michael Monastery, which was the residence of the bishop of Zeta. In this monastery Eustace studied theology and canon law. He was tonsured and ordained by Bishop Neofit of Zeta. Seeking a more ascetic life, Eustace left the Holy Archangel Michael Monastery for Mount Athos. There he spent many years in Hilandar Monastery and was elected igumen in 1262. In 1265, Igumen Eustace was elected bishop of Zeta.