History of Osman ghazi
SULTAN OSMAN GAZI Ordered 1299-1324 or 1326 Home History Osman Gazi Sultan Osman Gazi The founder and first Sultan of the Ottoman Empire, Osman, was born in 1258 AD in Sogut, near Bursa. He was one of the three sons of Ertugrul Gazi, and his mother was Halime Hatun. Osman Gazi was only 23 when he took control of the Kayi clan in Sogut and ascended to the throne after his father's death, reigning for 27 years until his death in 1326. After his ascension to the throne, he gathered several Turkoman groups around him and fought against the Byzantines, collaborating with Alaeddin Keykubad I of the Seljuks. When the Seljuk Empire remained without rule after Alaaddin's exile, Osman Gazi reunited them under his rule in 1299 marking history as the founding of the Ottoman Empire. Osman Gazi continued his campaigns against the rest of the Byzantine Empire in the region along with his brothers, sons and close supporters. He cut off Byzantine trade routes, forcing local rulers to surrender