Hungarian sources from 1288 make notice of one Russian named Ivan (Iwan dicto Oroz) as an ally of the ban of Severin, Theodore Vejtehi from the kindred Csan*d, who was one of the nobles that opposed the rule of Charles I of Hungary in 1316--1317. The land to the south of Severin was governed for Bulgaria by the despot of Vidin, Michael Shishman, a supporter of Vejtehi. Thus, as the Hungarian king established _his_ authority over Severin and suppressed Vejtehi's rebellion, Ivan the Russian may have fled to Vidin and entered the service of Michael Shishman. <sep>, Pronoun: his <sep>, A: Severin <sep>, B: Vejtehi