Itzam Kʼan Ahk I, also known as Ruler 2, was the son of Kʼinich Yoʼnal Ahk I and Lady Bird Headdress. Born on May 22, 626 (9.9.13.4.1 6 Imix 19 Sotzʼ in the Long Count), he assumed the position of "ajaw" ("leader") of Piedras Negras on AD 639 (9.10.6.5.9 8 Muluk 2 Sip)about two months after his father's demise and when he was only 12 years old. The title "kʼinich" translates to "sun-faced", and is a reference to the settlement's rulers' belief that they were the "lords of the sun". His name also included the ahk ("turtle") element, identifying him as royalty. His name was later appropriated by his eventual successor, Itzam Kʼan Ahk II, possibly to strengthen the latter's claim of legitimacy.