Question: "Don" Carlos, Duke of Madrid was the senior member of the House of Bourbon, a European royal house of French origin, a branch of what?
Sentence (from "Carlos, Duke of Madrid"): He was the Carlist claimant to the throne of Spain under the name Carlos VII from 1868 (his father's Spanish abdication), and the Legitimist claimant to the throne of France under the name Charles XI after the death of his father in 1887.
Relevant evidence: No