lapse
Little is known of "Jade Sky", who succeeded "Sky Xul" and was the last recorded ruler of Quiriguá. The city's power already was waning, as evidenced by the two stunted stelae erected during his reign, which indicate that the kingdom no longer had access to the kind of resources needed to produce monuments of a similar quality to those of his predecessors. "Jade Sky" did build two of the largest structures in the acropolis, however.
Quiriguá apparently retained its independence from Copán and continued to flourish until the beginning of the 9th century. Relations between the two cities had improved somewhat by 810, when king Yax Pasaj Chan Yopaat of Copán visited Quiriguá in order to carry out ak'atun-ending ritual. However, 810 was also the year when the last hieroglyphic texts were raised at Quiriguá, although a reduced level of construction continued in the city centre. After this, Quiriguá falls into silence, engulfed by the greater phenomenon of theClassic Maya collapse – it had lost its reason for existence when trade no longer flowed along the Motagua; within a few years Quiriguá was all but deserted and sites throughout the Motagua Valley suffered severe decline or abandonment.
Postclassic
In the early Postclassic Period (c. 900 – c. 1200), Quiriguá was occupied by peoples closely linked to the Caribbean coastal areas of the Yucatán Peninsula and Belize, perhaps due to Chontal Maya control of a trade network that included the Yucatán coast and the Motagua Valley. During their brief reoccupation of the site they made substantial additions to the acropolis complex. Finds associated with their occupation include a reclining chacmool sculpture and ceramics from the east coast of Yucatán, artifacts that demonstrate a close link with the distant city of Chichen Itza. Some copper bells and ornaments were recovered from Quiriguá, they are
