Which Palenque queen was the mother of K'inich Janaab' Pakal?

The Palenque queen who was the mother of Kʼinich Janaabʼ Pakal was Sak Kʼukʼ.

Sak Kʼukʼ ruled Palenque briefly from 612 to 615, during a severe succession crisis. Her father, Janahb Pakal, died after Palenque suffered attacks from Calakmul, and she became queen when the dynasty had no obvious adult male successor. She later transferred authority to her son, who took the throne in 615 at about age 12.

Pakal’s accession began one of the longest and most important reigns in Maya history. Sak Kʼukʼ appears to have remained influential during his early years, and Palenque’s inscriptions continued to emphasize her dynastic legitimacy. The Oval Palace Tablet famously depicts her presenting royal regalia to the young Pakal.

Yohl Ikʼnal is an easy alternative to confuse with Sak Kʼukʼ: she was an earlier Palenque ruler and may have been part of Sak Kʼukʼ’s maternal ancestry, but she was not the standard answer to the question about Pakal’s mother.