The holy right-believing Prince Theodore of Smolensk and Yaroslavl, nicknamed the “Black” [i.e. “dark” or “swarthy”], was born at a terrible time for Rus: the Mongol invasion of 1237-1239. At Baptism he was named for the holy Great Martyr Theodore Stratelates (February 8), who was particularly esteemed by the Russian warrior-princes ...
https://www.oca.org/saints/lives/2019/09/19/102667-saint-theodore-prince-of-smolensk-and-yaroslav-and-his-sons-sain
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