Crow Foot was the son of Sitting Bull

Sitting Bull

Sitting Bull Sitting Bull Sitting Bull (Lakota: Tȟatȟáŋka Íyotake (in Standard Lakota Orthography), also nicknamed Slon-he or "Slow"; (c. 1831 – December 15, 1890) was a Hunkpapa Lakota Sioux holy man who led his people as a tribal chief during years of resistance to United States government policies...

 of the Lakota. He also had sisters named Standing Holy and Lodge. He had brothers named Henry, Little Soldier, Red Scout, and Theodore. His mother was either Seen By Her Nation or Four Robes.

He participated alongside his father in the surrender at Fort Buford

Fort Buford

Fort Buford was a United States Army base at the confluence of the Missouri and Yellowstone Rivers in North Dakota, and the site of Sitting Bull's surrender in 1881....

in 1881. He was killed along with his father on December 15, 1890, by a what people believe was a group of Indian police.