Under his rule the Tlatelolcas continued to expand their wealth and influence within the valley of Mexico.

Tlacateotl also ordered the removal of sculptures from the ruins of Tula to decorate the growing city.

His reign ended in 1426 or 1427/8 during the succession struggle in Azcapotzalco between Tayatzin and Maxtla.

He was a brother of the queens Matlalatzin and Huacaltzintli and grandson of the famous king Tezozomoc.

His wives were called Xiuhtomiyauhtzin and Xiuhcanahualtzin, both of which were his aunts (one on each side).