�z Beg

Also spelled �Uzbek, �in full� Ghiyath Al-din Muhammad �z Beg� Mongol leader and khan of the Golden Horde, or Kipchak empire, of southern Russia, under whom it attained its greatest power; he reigned from 1312 to 1341. �z Beg was a convert to Islam, but he also welcomed Christian missionaries from western Europe into his realm. �z Beg encouraged the predominance of the princes of Moscow among his Christian vassals; his name survives