The remains, believed to be of a princess, were found inside an oak coffin while she was positioned with her arms resting beside her. The burial site was a rectangular pit measuring 9.4 feet by 3.6 feet, and she had her jewelry and pottery placed near her head.
She was one of three people buried on the site during the early Iron Age in the 8th century BC.
His grave was one of three burial mounds found at the site.
Human remains found in one of the other graves suggest that the person was cremated.
Another tomb appears to have been dug in the 5th century BC, with a four-post funerary sculpture surrounded by a shallow ditch.
She wore bracelets with blue glass and copper beads on both wrists, according to archaeologists from the National Institute for Preventive Archaeological Research (Inrap).
It is also suggested that she was wearing a belt as a copper alloy clip was also found.
The remains found include fragments of the woman’s pelvis, the two femurs, parts of the skull and the sacrum.
The tomb has two sides, both sides containing cremated human remains.
READ MORE: Australia threatens to involve WTO in China trade dispute
The discovery was made when workers began digging the ground to build the Plaine de L’Ain industrial park.
People in the funeral mounds lived in the area when the Halstatt culture, known for its fine craftsmanship and dedication to agriculture and metallurgy, was widespread in southeastern France and most European countries.
By 800 BC, long-term trade routes had been established for the marketing of copper, tin and iron, connecting the region to the Mediterranean.
It was also the period when people began to build hill forts, using walls and ditches that would prevent rival clans from entering.
Hundreds of mummified bodies in peat bogs were discovered around this time, many of whom succumb to violent deaths.
One of these bodies – the Tollund man of the 4th century BC – was so well preserved when it was discovered in Denmark that it was recently killed.
He was hanged, the rope left serious neck injuries.
Another – the man Lindow, found in Manchester, England – was said to have an open throat and to be whipped with a rope made from animal parts before being thrown into a bog.