Archaeologists in Mexico say they have found the first temple dedicated to a deity called the Flayed Lord, an important god in the Aztec Empire whose worshipers were said to wear the skin of sacrificial victims.

Artifacts related to the god were found in the central state of Puebla, at a site built by the Popoloca people, Mexico’s National Institute of Anthropology and History said in a statement on Wednesday. The Popolocas built in the area over several centuries, beginning around A.D. 900, and were assimilated into the sprawling Aztec kingdom.

At the temple, which the institute said was probably built between A.D. 1000 and 1260, the archaeologists found artifacts related to the god, Xipe Tótec, including two stone skulls and a stone torso that had an extra hand hanging off its left arm. Scientists said the extra hand suggested the god was wearing the remains of a sacrificial victim.

Noemí Castillo Tejero, the archaeologist who led the project, was not available for an interview, but the institute said that the excavation at the complex, called Ndachjian-Tehuacan, had also uncovered two altars nearby, in a layout that appeared to match Aztec accounts of rituals associated with the cult of Xipe Tótec.