Right-Believing Right-Believing Prince David Feodorovich of Yaroslavl

Right-Believing Prince David Feodorovich of Yaroslavl was the elder son of Right-Believing Prince Theodore Rostislavich the Black of Smolensk and Yaroslavl, from his second marriage to Anna, a baptized daughter of a Tatar khan; he was born in the Golden Horde, though no chronicle records the exact year. After his father's death in 1299, David inherited the Principality of Yaroslavl and ruled it for over two decades. Chronicles preserve remarkably little about him — the only precise date that survives is the year of his death, 1321. He was buried beside his father in the Transfiguration Monastery of Yaroslavl.

David had two sons, Vasily (nicknamed "the Terrible-Eyed"), who succeeded him as Prince of Yaroslavl, and Michael, Prince of Mologa, from whom the later princely houses of Sitsky, Prozorovsky, and others descended. In 1463, under Right-Believing Prince Alexander Feodorovich the Stout, the incorrupt relics of Theodore and his sons David and Constantine were uncovered — all three lying together in a single coffin, with the sons' smaller bodies beneath their father's. From that time the three princes have been glorified jointly as Theodore, David, and Constantine, Wonderworkers of Yaroslavl; Church tradition knows no separate feast day for David alone.