They became vassals of the Golden Horde in 1242, after a bloody uprising which the Mongols brutally suppressed with an army of 40,000 warriors. Later Mongol and Tatar rulers did not intervene in local internal affairs as long as the annual tribute was paid to Sarai. The Tokhtamysh–Timur war (1361–1395) devastated 80% of the Suar people. When the power of the Golden Horde began to diminish, the local Mişär Tatar Murzas from Pyana and Temnikov tried to rule the Chuvash area.