Researchers carried out the first DNA study of the people of ancient Machu Picchu.

Researchers carried out the first DNA study of the people of ancient Machu Picchu.


October 15, 2025 | Quinn Mercer

Researchers carried out the first DNA study of the people of ancient Machu Picchu.


An Amazing New View Of An Ancient People

For the first time, genome-wide ancient DNA has revealed who lived, worked, and died at the incredible Inca mountaintop site of Machu Picchu. These findings offer new perspectives on migration, empire, and social identity in the Inca world, blending the very latest ideas of archaeology and genetics in a new, innovative way.

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Retainers, Not Royals

Researchers sequenced DNA from 34 individuals buried near Machu Picchu. Evidence shows these people were retainers, not nobles, who served the royal estate. Their remains provide a direct window into the lives of the people who inhabited and maintained this mountain citadel.

LaCasadeGoetheLaCasadeGoethe, Pixabay

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Diverse Origins Across The Empire

Genetic results showed that Machu Picchu’s inhabitants came from distant corners of the Inca realm, including the high Andes, Pacific coast, and Amazon basin. This suggests extensive and restless movement of people in the period of imperial rule.

File:Amazon River - 2018.jpgAlexander Gerst, Wikimedia Commons

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Unexpected Amazonian Links

Many individuals carried an Amazonian ancestry, demonstrating the strong cultural and biological ties between Andean peoples and those of lowland jungle regions. The existing models of Inca expansion and trade had previously underestimated this connection.

File:Andean Man.jpgCacophony, Wikimedia Commons

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Handpicked Individuals, Not Families

This study revealed few genetic relatives among the retainers, meaning that they were recruited individually rather than relocated as families. This system put a premium on allegiance to the empire rather than kinship bonds.

a close up of a structure with a blue backgrounddigitale.de, Unsplash

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Burials Without Genetic Segregation

The 34 burials showed no grouping or organization by ancestry or region. People of many different origins were interred together, which suggests that social and occupational identities took precedence over ethnicity or lineage at Machu Picchu.

File:Machu Picchu, Perú, 2015-07-30, DD 60.JPGDiego Delso, Wikimedia Commons

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Evidence for Inca Resettlement Policies

The results are in line with written accounts of mitmaqkuna, people resettled across the empire for labor or service. For example, an elite household staffed by subjects hired from many provinces would’ve been a microcosm of Machu Picchu, which implemented this practice on an imperial scale.

File:Ejército Inca - Inca Army.jpgMiguel Vera León from Santiago, Chile, Wikimedia Commons

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Challenging The Standard Timeline

The presence of genetic markers from distant regions suggests broader geographic integration at an earlier time than we once thought. This diversity implies that the Inca Empire’s reach was socially deeper and more adaptable than conventional timelines have shown.

File:EN CEREMONIA OFICIAL SE RECORDÓ A PATRIOTAS CAÍDOS EN HISTÓRICA BATALLA DE AYACUCHO (23706777196).jpgGaleria del Ministerio de Defensa del Perú, Wikimedia Commons

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A Microcosm Of Empire

Machu Picchu appears as a microcosm of Inca governing practices, a wholly engineered society where ethnicity was subordinated under service and identity to the iron-fisted rule of Sapa Inca (the Emperor). The retainers were the living, breathing personification of the empire’s cosmopolitan model in miniature.

File:Ruins of Machu Picchu Inca empire Peru.jpgPeter van der Sluijs, Wikimedia Commons

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Genomic Techniques and Challenges

The actual DNA itself was extracted from degraded teeth using advanced ancient-DNA methods. Researchers compared the sequences to modern and ancient genomes from across South America, creating the first genetic map ever made of Machu Picchu’s residents.

a close up of a fake animal's teethErdei Greta, Unsplash

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Comparative Insights From Cusco

DNA from 34 individuals buried near the nearby Inca city of Cusco provided a working baseline for comparison. The Machu Picchu individuals proved to be more genetically diverse, underscoring the capital’s use of peripheral labor from throughout the empire.

File:Sacsayhuamán, Cusco, Perú, 2015-07-31, DD 38.JPGDiego Delso, Wikimedia Commons

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Ethnicity Versus Role and Status

At Machu Picchu, identity was shaped by labor and allegiance more than blood ancestry. The diversity found among the 34 retainers shows how Inca rule redefined belonging through imperial service rather than generational transfer.

Inca PeopleManfredwinslow, Wikimedia Commons

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Architecture Reflects Integration

The architectural and urban harmony of Machu Picchu likely reflected its social harmony. Laborers from far-flung provinces of the empire contributed to building a city unified by purpose, not ethnic heritage.

File:Ruins of Machu Picchu (Unsplash).jpgTomas Sobek tomas_nz, Wikimedia Commons

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Mobility As an Imperial Strategy

Human mobility appears to have been a deliberate political tool. By redistributing skilled workers, the Incas maintained control, disseminated culture, and forged loyalty, ensuring unity across diverse lands and peoples.

Gettyimages - 586340508, Lyncas Consacre Son Vaze Au Soleil, Circa 1723 The Incas consecrate their Vase to the Sun, 'L'Yncas consacre son Vaze au Soleil', circa 1723. From 'Cérémonies et coutumes religieuses de tous les peuples du monde'. Print Collector, Getty Images

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Labor, Duty, And Power

These retainers probably served in domestic, agricultural, and religious roles. Their lives and burial reflect the ways in which Inca authority was administered through structured, lifelong service rather than brutal enslavement.

Gettyimages - 586340526, Lyncas Vient Recevoir Les Orfrandes Que Ses Sujets Font Au Soleil, Circa 1723 Print Collector, Getty Images

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Ethics and Repatriation

The genetic study was carried out with Peru’s cooperation, and the country’s commitment to ethical stewardship. The remains form part of the Yale–Peru repatriation agreement, balancing scientific insight with respect for the country’s ancient heritage.

Artem PodrezArtem Podrez, Pexels

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Future Genetic Research

Further genomic analysis could still reveal more about how these retainers adapted to altitude, diet, and environment. Larger sample sizes could eventually give us the ability to trace population movements within the broader Andean world.

ThirdmanThirdman, Pexels

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A New Layer Of History

This study combines archaeology and genomics, transforming Machu Picchu from a symbol of ancient mystery into a living record of mobility, people, and empire. DNA analysis is a source offering direct testimony from the people themselves.

ColiN00BColiN00B, Pixabay

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Humanizing the Inca World

Genetic data transforms abstract history into personal stories. Each Machu Picchu individual represents a journey from distant homelands woven into the empire’s social fabric and preserved in its mountain sanctuary.

File:Brooklyn Museum - Manco Capac, First Inca, 1 of 14 Portraits of Inca Kings - overall.jpgBrooklynMuseumBot, Wikimedia Commons

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The Cosmopolitan Citadel

Machu Picchu’s residents were a diverse collective bound by service, not ancestry. Their DNA captures an empire’s ambition to unite peoples under one rule, proving that this Inca masterpiece was as multicultural as it was monumental.

File:Machupicchu hb10.jpgHiram Bingham III, Wikimedia Commons

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