Ivan Sratsimir ruled at Vidin amid divided territories and Ottoman expansion. His authority was restored after the Hungarian occupation. The fortress predates him, and the legend of Vida is not a ruler’s documented biography. Scholars debate the end of Vidin’s independent statehood. Was a son of Tsar Ivan Alexander. Ruled at Vidin in the fourteenth century. His name is associated with Baba Vida fortress. Calling him the “last tsar” depends on interpretations of Constantine’s later role.