 From 1480 the Aztec ruler Ahuitzotl intensified the conflict with the Tarascans.He supported attacks on Tarascan lands by other ethnic groups allied with or subjugated to the Aztecs such as Matlatzincas, Chontales, and Cuitlatecs.The Tarascans, led by the "cazonci" Zuangua, repelled the attacks but further Tarascan expansion was halted until the arrival of the Spaniards two years into the rule of the last "cazonci" of an independent Tarascan state, Tangáxuan II.