Tízoc or Tizoc was the seventh Aztec Hueyi Tlatoani (emperor) of the city of Tenochtitlán. Most sources agree that he took power in 1481 (the Aztec year "2 House"), succeeding his older brother Axayacatl. Although Tízoc's reign was relatively short, he began the rebuilding of the Great Pyramid of Tenochtitlan (a task completed by his younger brother Ahuitzotl in 1487), and also put down a rebellion of the Matlatzincan peoples of the Toluca Valley.