Figurine of a Standing Dignitary. Wari society, Peru, 600-1000 CE. Wood, shell, stone, and silver. Image Source: Fort Worth Scene.
Archaeologists have discovered a tomb with some 60 mummies, sitting upright, indicating royalty in Peru. The mummies belonged to the Wari culture, which dominated Peru from 500 to 1000 CE. See a BBC report below the jump on this pre-Incan empire.