Bayezid I vs Yusuf Adil Shah

Bayezid I led the Ottoman army to victory at the Battle of Kosovo against a coalition of Serbian and Balkan forces. Both Sultan Murad I and Serbian Prince Lazar were killed, but the battle solidified Ottoman control over the Balkans.

Bayezid I conquered the Bulgarian Empire and much of Serbia, incorporating these territories into the Ottoman realm. These conquests expanded Ottoman control over the Balkans and eliminated major Christian states in the region.

Bayezid I besieged Constantinople, the Byzantine capital, for eight years. The siege was ultimately lifted due to the Mongol invasion of Anatolia, but it severely weakened the Byzantine Empire and demonstrated Ottoman ambition to capture the city.

Bayezid I defeated a large Crusader army from Hungary, France, and other European states at Nicopolis on the Danube. The victory crushed the last major Crusade against the Ottomans and confirmed Ottoman dominance in the Balkans.

Bayezid I was defeated and captured by Timur at the Battle of Ankara. The defeat led to the collapse of Ottoman unity and a period of civil war (the Ottoman Interregnum), ending Bayezid's reign and temporarily halting Ottoman expansion.

Yusuf Adil Shah declared independence from the Bahmani Sultanate and established the Adil Shahi dynasty with its capital at Bijapur. This marked the beginning of a new sultanate in the Deccan.

Yusuf Adil Shah began the construction of the Bijapur Fort, a massive citadel with walls and bastions. The fort became the center of Adil Shahi power and a symbol of the dynasty's strength.

Yusuf Adil Shah fought a war against the Vijayanagara Empire, capturing the fort of Raichur. The conflict established Bijapur as a major military power in the Deccan.

Yusuf Adil Shah formed an alliance with the Portuguese governor Afonso de Albuquerque, allowing the Portuguese to establish a trading post at Goa. This facilitated the import of horses and firearms.