AHCWI: Secure The Bulgarian Empire

The Bulgarian Empire was a major force of southern and eastern europe, but fell into disarray and decline with the mongols and other invasions. It made recovery- albeit as a heavily decentralized state- in the 1300s... before being conquered by the ottomans in 1396. Your goal is simple: secure the Bulgarian power in the Balkans with a POD after the mongol invasion, and have it be a great power into the 1500s. They also need to control constantinople before 1492


Bulgaria in the 1240s under Ivan Asen II and their minimum European territories