Niuachi

The Niuachi, or Missouria, were a Siouan-speaking people near the junction of the Grand and Missouri rivers. Jacques Marquette contacted them in 1673, and the French built Fort Orleans nearby in 1723. A Sauk and Meskwaki attack in 1730 killed hundreds; many survivors joined the Otoe, and after a smallpox outbreak in 1829 the remaining Missouria joined them.