 Complete the following phrase:  He was the first and greatest leader of the Bujak Horde which seems to have formed up about the time he came to power. A connection to the Cantemirești of Moldavia is likely, but cannot be established exactly. He was associated with the Mansur clan which held the northwestern steppe-like corner of Crimea and had connections with the steppe nomads. He is sometimes described as a Crimean Tatar, but this is not accurate. He traced his ancestry to Edigu died 1491 and his son Mansur who was executed by Barak Khan in 1427. His grandfather was Divey-Mirza who was captured at the 