Kʼinich Yat Ahk II (Mayan pronunciation: [kʼinitʃ jat akh]), also known as Ruler 7, was the last ajaw of Piedras Negras,[1] an ancient Maya settlement in Guatemala.

Likely the final ajaw of Piedras Negras, Kʼinich Yat Ahk II (also known as Ruler 7) was the son of Lady Bird, and was born on April 7, 750 AD (9.15.18.16.7 12 Mankiʼ 5 Sotzʼ in the Long Count).

[3][4] Kʼinich Yat Ahk II took up the throne at Piedras Negras on May 31, 781 (9.17.10.9.4 1 Kʼan 7 Yaxkʼin), almost a year following the death of his brother, Haʼ Kʼin Xook.

[5] Kʼinich Yat Ahk II first took military action against his opponents in August of 787 AD, capturing a yajaw kʼahk (a "lord of fire") from Santa Elena Poco Uinic.

[2] There is evidence that troops from Yaxchilan attacked Piedras Negras and razed it, as debris and burnt artifacts have been documented throughout the site, and it appeared that Throne 1 was deliberately dismantled.

[2] Regardless, Simon Martin and Nikolai Grube, and Mayanist Stephen D. Houston argue that the Piedras Negras dynasty may have survived for a time after the capture and death of Kʼinich Yat Ahk II, but its power was severely curtailed and fizzled out around c. 810 AD.

[10] According to O'Neil, this style is evidence that at this time, "the sculptors … favored multi-figural pictorial narrative over the divine ruler's singular embodiment or three-dimensional presence.

[16] The panel is both an intricate narrative of daily life in the palace, as well as a documentation of a 749 AD Kʼatun celebration thrown by the previous ruler Itzam Kʼan Ahk II.

[16][18] To this day, many archaeologists and Mayanists consider Panel 3 to be a "masterpiece of Maya art" due to its elucidating the life of Itzam Kʼan Ahk II and his servants, as well as providing information regarding rare grammatical structures in the Mayan glyphs.