Ertugrul is the father of Osman. With the small part of Kayi tribe, Ertugurl with only 400 tents, went on the challenging path toward the West and made foundation for one of the greatest empires. After Sultan Aleaddin was poisoned by Sadettin Kopek, he revolted against Kopek’s government, and proclaimed his own State, the City of Sogut its capitol.. , click here →