Question: What 1876 battle was Chief Red Fox's uncle involved in?
Sentence (from "Chief Red Fox"): Chief Red Fox (Lakota: "Tokála Luta," also known as Chief William Red Fox; June 11, 1870 – 1976) was an Oglala Lakota Sioux performer, actor, and Sioux Indian rights advocate, born on the Pine Ridge Reservation in the Dakota Territory.
Relevant evidence: No