How did the native Americans viewed sitting bull

Sitting Bull (c. 1831-1890) was a Teton Dakota Native American chief who united the Sioux tribes of the American Great Plains against the white settlers taking their tribal land. The 1868 Fort Laramie Treaty granted the sacred Black Hills of South Dakota to the Sioux, but when gold was discovered there in 1874, the U.S. government ignored the treaty and began to remove native tribes from their land by force.
Explanation: I looked it up on safari