The parents of a child ritually sacrificed in pre-contact Mexico were likely close relatives. Like, really close relatives. Sounds like something out of Game of Thrones (RIP Princess Shireen Baratheon), but DNA analysis indicates it happened at least once in a pre-contact Mexican community.
Paquimé is a UNESCO World Heritage Site in the Mexican state of Chihuahua that’s known for its archaeological riches. The area was inhabited for over 700 years by members of the Mogollon culture, but was abandoned for unknown reasons in the mid-15th century.
Human remains found in burial sites hint at Paquimé’s hierarchy. Some skeletal remains were found in lower layers, surrounded by goods such as hand drums and ceramics. Others, in the higher layers, showed signs of ill health, and possibly of even being partially cannibalized.
Among the bodies found in an elite area were the remains of a male child, who was between two and five-years-old when he died. A 1974 study concluded that the body’s positioning suggested he was likely sacrificed in a ritual to consecrate a new building.
Now, to better understand the social structure of Paquimé, a team of scientists decided to analyze the boy’s DNA. In the resulting study published in the journal Antiquities, the researchers reported finding a high number of identical genes and alleles, meaning the child had parents “who were more closely related than first cousins,” said Jakob Sedig, a postdoctoral fellow at Harvard who led the study, in a press release.
“These results provide unique insight into social hierarchy and socio-religious practices at Paquimé,” he added. “The next steps in this research are to continue analyzing the ancient DNA of individuals from Paquimé and northern and western Mexico to help us understand how different groups moved and mixed through time.”
Anthropologists believe the House of the Well, where the boy’s remains were found, was a burial site reserved for local elites. He was likely the offspring of an upper-class pair of siblings or other very close relatives. Because he was born to two members of a local elite family, their sacrifice “would have been a powerful way to consecrate the House of the Well and augment social, political, and ritual standing,” the scientists wrote.
They added that the findings suggest taboos against incest, while enforced for commoners, may have been overlooked for elites seeking to consolidate power (for House of the Dragon watchers, think Aegon and Helaena). This practice of close-kin unions among elites shows how the pursuit of power could sometimes override societal norms.
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