Kesar Novak

Novak the Serb ("Srbin Novak") was a 14th-century Serbian nobleman that held the region of Lake Prespa during the Serbian Empire of Uroš the Weak (r. 1355-1371). He held the title of "Caesar", and is hence also known as Kesar Novak.
He had a Greek wife, Kali, with whom he had a daughter Marija (Maria) and a son Amiral (Amiralis).
Among his endowments are the cave-church of Bogorodica (Holy Virgin Eleusa) on the island of Maligrad where frescoes and Greek inscriptions of his family exist dating to 1369.