Gregory Tsamblak or Grigorij Camblak was a Bulgarian writer and cleric. He was the pretended Metropolitan of Lithuania between 1413 and 1420. A Bulgarian noble, Tsamblak lived and worked in Bulgaria, but also in Serbia and then Kiev. His literary works represent a heritage of the national literature of Serbia, particularly the style of Old Serbian Vita made popular in the monasteries of the 12th century.
