Rabia Bala Hatun was the wife of Osman I, the founder of the Ottoman Dynasty. She was the daughter of Sheikh Edebali and the mother of Alaeddin Ali Pasha of the Ottoman Empire.
The Tomb of Rabia Bala Hatun located in Bilecik Turkey
Osman I or Osman Ghazi was the founder of the Ottoman Empire. While initially a small Turkoman principality during Osman's lifetime, his beylik transformed into a world empire in the centuries after his death. It existed until shortly after the end of World War I.
An Ottoman miniature depicting Osman I, c. 1580
Ertuğrul's türbe (tomb) in Söğüt
16th-century depiction of Osman I by Paolo Veronese
Ilkhan Mahmud Ghazan (on horseback), higher ruler of Anatolia during the early years of Osman's reign. All Turkoman Beys, or Emirs, were subordinate to him despite the inherent hostility between Turks and Mongols.