Mansur Kiyat (Manzur) of the Kiyat dynasty - Mamai's grand son

Manzur Kiyat, purportedly escaped to Lithuania, and, serving Grand Prince Vytautas the Great, received the title of Prince of Hlinsk with multiple estates around the modern city of Poltava (Ukraine). These legendary events could have taken place in the 15th century, although the first documented mention of the Glinski princes is made in 1437. Michael Glinski was the most illustrious member of the family: he studied at the German university, took part as a knight in the Italian Wars, was the most powerful man in Lithuania in the 16th century, but later rebelled and run away with his brothers to Muscovy and helped the Russians to retake the city of Smolensk. His niece Elena Glinskaya was married to Vasily III, Grand Prince of Moscow, and Ivan the Terrible was her son.