Fall to Ottoman Power (1371–1396)

Following the death of Tsar Ivan Alexander in 1371, the once unified Bulgarian state fragmented into three separate political entities: the Tarnovo Tsardom under Ivan Shishman, the Vidin Tsardom under his elder brother Ivan Sratsimir, and the Karvuna appanage or Dobruja under Ivanko. This division reflected the ongoing feudalization and internal family disputes, weakening the Bulgarian state at a critical time when the Ottoman Empire was expanding aggressively into the Balkans.

Ivan Shishman inherited the Tarnovo throne and the traditional Bulgarian political ideology, styling himself as "Tsar and autocrat of all Bulgarians and Greeks," a title reflecting his claim to the Bulgarian legacy and authority. However, his reign was marked by the end of traditional Bulgarian foreign policy centered on Byzantium, as the Ottomans replaced the Byzantines as the primary external power. Lacking significant political experience, Ivan Shishman sought various strategies to preserve his realm, including diplomatic maneuvering, vassalage, marriage alliances, and attempts to organize coalitions with Serbia and Hungary. Despite these efforts, his position was precarious, and the Ottoman threat loomed large.

The Ottomans steadily advanced into Bulgarian territories, capturing key fortresses and cities. After the catastrophic Battle of Chernomen in 1371, where Christian forces were defeated, the Ottomans penetrated deeper into the Balkans. Sofia fell in 1382 after a prolonged siege, and although Ivan Shishman could not assist, this loss signaled the growing Ottoman dominance. In 1388, a major Ottoman campaign led by Grand Vizier Ali Pasha crossed the Balkan Mountains, seizing important towns such as Shumen and Provadia, and besieging Ivan Shishman in Nikopol. The Bulgarian tsar was forced to seek peace, ceding Silistra as part of the agreement. However, Ivan Shishman later reneged on handing over Silistra, leading to renewed Ottoman pressure.

The Ottomans eventually captured Tarnovo in 1393, but Ivan Shishman had relocated to Nikopol before the city's fall. He continued to rule as a vassal or local governor under Ottoman suzerainty, but his days were numbered. After the Battle of Rovine in 1395, Sultan Bayezid I ordered Ivan Shishman's execution, ending his life and reign. His death marked the definitive collapse of the Tarnovo Tsardom. Meanwhile, Ivan Sratsimir in Vidin and Ivanko in Dobruja also faced Ottoman encroachment. Vidin fell shortly after, with Ivan Sratsimir captured and taken to Bursa, dying in captivity. His heir fled to Hungary and later Serbia.

The Ottoman conquest transformed Bulgarian lands into Ottoman provinces, with Silistra becoming a sanjak center. Some Bulgarian rulers, including Ivan Shishman and Ivanko, were retained as Ottoman vassals for a time, but their autonomy was severely limited. The loss of the Bulgarian capital and the deaths or captivity of its rulers symbolized the end of medieval Bulgarian statehood. The period was marked by fear, resignation, and a collapse of traditional leadership, as described in contemporary sources that lament the suffering and despair of the Bulgarian people.

Despite the tragic outcome, Ivan Shishman is remembered in folklore and historical memory as the last medieval Bulgarian tsar who struggled against overwhelming odds. His attempts at diplomacy, coalition-building, and resistance, though ultimately unsuccessful, reflect the complex and desperate efforts of a declining state confronting a rising empire. The fall of the Second Bulgarian Empire thus stands as a pivotal moment in Balkan history, marking the transition from medieval Christian kingdoms to Ottoman rule.

After Tsar Ivan Alexander died in 1371, the Bulgarian state, which had once been united, split into three separate political powers: the Tarnovo Tsardom under Ivan Shishman, the Vidin Tsardom under his elder brother Ivan Sratsimir, and the Karvuna appanage, a hereditary local domain, or Dobruja under Ivanko. This breakup showed both the growing feudalization of Bulgarian society and the quarrels within the ruling family. It weakened Bulgaria badly at exactly the moment when the Ottoman Empire was pushing hard into the Balkans.

Ivan Shishman took the throne in Tarnovo and also inherited the old Bulgarian idea of kingship. He called himself “Tsar and autocrat of all Bulgarians and Greeks,” which showed his claim to rule over the Bulgarian lands and their legacy. But his reign came at a turning point. Traditional Bulgarian foreign policy, which had long focused on Byzantium, came to an end because the Ottomans had replaced the Byzantines as the main outside power. Ivan Shishman had little political experience, so he tried many ways to save his state: diplomacy, vassalage, marriage alliances, and efforts to build a coalition with Serbia and Hungary. None of this gave him a secure position, and the Ottoman danger kept growing.

The Ottomans kept moving deeper into Bulgarian territory and taking important fortresses and towns. After the disastrous Battle of Chernomen in 1371, where Christian forces were defeated, they advanced further into the Balkans. Sofia fell in 1382 after a long siege, and even though Ivan Shishman could not help defend it, the loss showed how strong Ottoman power had become. In 1388, a major Ottoman campaign led by Grand Vizier Ali Pasha crossed the Balkan Mountains, seized key towns such as Shumen and Provadia, and trapped Ivan Shishman in Nikopol. He was forced to ask for peace and gave up Silistra as part of the settlement. Later, however, he refused to hand Silistra over, and this brought renewed Ottoman pressure.

The Ottomans took Tarnovo in 1393, although Ivan Shishman had already moved to Nikopol before the city fell. He kept ruling for a time as an Ottoman vassal, or subordinate ruler under Ottoman suzerainty, which means Ottoman overlordship. But his end was near. After the Battle of Rovine in 1395, Sultan Bayezid I ordered Ivan Shishman to be executed, bringing his life and rule to an end. With that, the Tarnovo Tsardom finally collapsed. At the same time, Ivan Sratsimir in Vidin and Ivanko in Dobruja also faced Ottoman expansion. Vidin fell soon afterward, Ivan Sratsimir was captured and taken to Bursa, and he died in captivity. His heir fled first to Hungary and later to Serbia.

The Ottoman conquest turned Bulgarian lands into Ottoman provinces, and Silistra became a sanjak center, meaning the main town of an Ottoman district. For a time, some Bulgarian rulers, including Ivan Shishman and Ivanko, remained in place as Ottoman vassals, but their freedom was very limited. The loss of the Bulgarian capital and the death or imprisonment of its rulers stood for the end of medieval Bulgarian statehood. People at the time described the years as a time of fear, surrender, and the collapse of old leadership, and contemporary sources mourned the suffering and despair of the Bulgarian people.

Even so, Ivan Shishman lives on in folklore and historical memory as the last medieval Bulgarian tsar who fought against impossible odds. His diplomacy, his attempts to build alliances, and his resistance all failed in the end, but they show the difficult and desperate efforts of a weakening state facing a rising empire. The fall of the Second Bulgarian Empire was therefore a major turning point in Balkan history, marking the shift from medieval Christian kingdoms to Ottoman rule.

After Tsar Ivan Alexander died in 1371, Bulgaria broke into three parts. Ivan Shishman ruled Tarnovo, Ivan Sratsimir ruled Vidin, and Dobruja was ruled by Ivanko. This split made Bulgaria much weaker just as the Ottoman Empire was growing stronger.

Ivan Shishman tried to save his land with peace talks, alliances, and promises to the Ottomans. But the Ottoman army kept pushing into Bulgarian land. Sofia fell in 1382, and more towns were taken in 1388.

Tarnovo, the old capital, fell in 1393. Ivan Shishman moved to Nikopol and kept ruling for a short time, but he was later executed in 1395. Vidin also fell, and Ivan Sratsimir died in captivity.

These events ended medieval Bulgarian rule. Bulgarian lands became part of the Ottoman Empire. Ivan Shishman is remembered as the last Bulgarian tsar who tried to resist a much stronger enemy.