Saint Gleb of Murom

Gleb Vladimirovich (c. 990s – September 9, 1015, near Smolensk; baptized David) was the Prince of Murom (c. 1013–1015) and a son of the Grand Prince of Kiev, Vladimir the Great, by either Princess Anna or an unknown Bulgarian woman, possibly of the Volga Bulgars. He was buried alongside his brother Boris in Vyshhorod. He is canonized by the Russian Orthodox Church and is included in the list of saints of the Roman Catholic Church under the name David of Poland.