Pierre-Jean De Smet

Pierre-Jean De Smet, SJ ( ; 30 January 1801 – 23 May 1873), also known as Pieter-Jan De Smet, was a Flemish Catholic priest and member of the Society of Jesus (Jesuits). He is known primarily for his widespread missionary work in the mid-19th century among the Native American peoples, in the midwestern and northwestern United States and western Canada.

His extensive travels as a missionary were said to total . He was affectionately known as "Friend of Sitting Bull", as he persuaded the Sioux war chief to participate in negotiations with the American government for the 1868 Treaty of Fort Laramie. The Native Americans gave him the affectionate nickname ''De Grote Zwartrok'' (''The Great Black Skirt''). Provided by Wikipedia