During that time, she probably served as de facto ruler of the city; however, monuments such as Stela 24 suggest she was never formally recognized as such, since she continued to use the emblem glyph of Dos Pilas throughout her life.

Though Lady B'ulu was not B'alaj Chan K'awiil's first wife, she carried the prestigious title ochk'in kalo'mte (loosely, "western autocrat") on Stela 24, suggesting a high level of political power.

A little more than five years after her arrival, on January 6, 688, she gave birth to a son, the future king of Naranjo Kʼakʼ Tiliw Chan Chaak.

[6] Their relationship may have been an uneasy one; Christophe Helmke notes that the queen erected monuments that centered herself as ruler well into K'ak' Tiliw Chan Chaak's adulthood, suggesting that she competed with him for power and influence.

[2][5] This ruler appears on Naranjo Stela 18 in text that was probably a late addition to the monument; here, his presence at important events, including a star war with Komkom, are used to imply his fitness to rule.

[2] That said, she may have been responsible for a method of counting moon phases that spread during the Period of Uniformity; during this time, Glyph C values across the Maya area remained consistent.

[8] She also supervised the production of high-quality pottery, a trend which continued during the rule of her son, who became known as Pure (or White) Artisan for his patronage of the arts.

[7] The combination of maize god and moon goddess symbolism may have been a deliberate message that the ruler was capable of both masculine and feminine roles.

When K'ahk' Tiliw Chan Chaak was about 13, his mother was the one who publicly celebrated the half-k'atun anniversary of 9.14.10.0.0 (October 11, 721) with the erection of Stela 24, suggesting she was serving as his regent at that time.