Osman I Timeline

Life of Osman I.

Osman I succeeds his father Ertuğrul as ruler of his territory.

Osman I’s forces lay siege to Nicaea.

Reign of Osman I.

Osman I’s forces capture the city of Yenşiehir and make it the first capital of Osman’s Beylik.

The Byzantine Empire breaks the siege of Nicaea.

Osman I’s forces defeat the Byzantines at the Battle of Bapheus.

The Bithynian capital of Prusa is put under siege by Osman I and his army.

Osman I dies and his son Orhan succeeds him.

Orhan successfully captures the city of Prusa, which he renames Bursa.