(or "niche") scattering incense. The monument was placed on the lower part of Structure O-13, and according to O'Neil, the stela's "form, imagery, and location acknowledged and responded to Structure O-13's participation in the processional circuit" of the site. The front of the monument features not only the ajaw, but also his mother standing "as witness" to her son. Her positioning likely suggested that she has just arrived from the West Group Plaza via a sacred route. Stela 14 also includes the names of several sculptors and artists. These names are difficult to translate, since many are unique and not found in any other extant Mayan glyphic texts. Stela 16 celebrates the accession of a local sajal (or lesser Maya leader) at the nearby satellite kingdom of La Mar. This stela caused Tatiana Proskouriakoff to misidentify the sixth ajaw of Piedras Negras as this sajal, instead of Haʼ Kʼin Xook. The uniqueness of a La Mar ruler being celebrated on a Piedras Negras stela seems to signify that La Mar had, at the time of Yoʼnal Ahk III and possibly earlier, attained a certain degree of importance "within the Piedras Negras hegemony". The front of the stela is heavily weathered, but Megan O'Neil argues it likely featured a carving of Yoʼnal Ahk III, based on comparisons with other stelae at Piedras Negras, like Stelae 6 and 11. References Bibliography Kings of Piedras Negras 8th century in the Maya civilization 8th-century monarchs in North America