Ivan Sratsimir of Bulgaria

Ivan Sratsimir of Bulgaria, born in either 1324 or 1325, emerged as a significant sovereign in the region of Vidin, where he ruled from 1356 until 1396. As the eldest surviving son of Ivan Alexander, he faced disinheritance in favor of his half-brother, Ivan Shishman. Undeterred, Ivan proclaimed himself emperor in Vidin, asserting his authority amidst the tumultuous political landscape of the time.

His reign was marked by a notable conflict with Hungarian forces, which led to the occupation of his domains. In a show of resilience, Ivan received support from his father, successfully driving the invaders away. Following the death of Ivan Alexander in 1371, Ivan Sratsimir distanced himself from Tarnovo, even placing the archbishop of Vidin under the jurisdiction of the Patriarchate of Constantinople, a move that underscored his desire for independence.

Geographically, Vidin initially remained safe from the Ottoman incursions that ravaged the Balkans. However, Ivan Sratsimir's reluctance to assist his half-brother against the Ottomans would later prove detrimental. It was only after the fall of Tarnovo in 1393 that he adopted a more proactive stance, eventually joining the crusade led by Hungarian King Sigismund. Unfortunately, the disastrous battle of Nicopolis in 1396 led to the Ottomans seizing Vidin, resulting in Ivan's capture and imprisonment in Bursa, where he likely met a grim fate.

Despite his son Constantine II's attempts to claim the title of Emperor of Bulgaria and control parts of his father's realm, Ivan Sratsimir is often regarded by historians as the last ruler of medieval Bulgaria. His legacy endures, with Sratsimir Hill on Trinity Peninsula in Antarctica named in his honor.