A 2,500-Year-Old Grave In Siberia That Contains An Ancient Warrior Couple. Both of them are believed to have died in their 30s and were buried together with a newborn and an elderly servant woman, according to the scientists.The couple are thought to be spouses, whereas the elderly woman might have been their servant, who likely died in her 60s. Remains of the baby were scattered throughout the grave, most likely due to rodents eating the flesh of the deceased. The ancient warrior couple may shine a light on the lost Scythian civilization, which existed in the region of modern-day Russia until approximately 2,200 years ago.