Wikipedia
Quaquapitzahuac
Quaquapitzahuac (died 1407) was the first ruler of the Aztec city of Tlatelolco. His name, which means "Slender Horn", was pronounced in Classical Nahuatl, and is also spelled Cuacuauhpitzahuac, Cuacuapitzahuac, and Quaquauhpitzahuac.
His nephew was Tecollotzin.