Question: Kensington Palace is the official London residence of the Duchess of Gloucester, who is the first cousin of whom?
Sentence (from "Birgitte, Duchess of Gloucester"): Birgitte, Duchess of Gloucester, {'1': ", '2': ", '3': ", '4': "} (born Birgitte Eva Henriksen on 20 June 1946; later van Deurs), is the wife of Prince Richard, Duke of Gloucester, a first cousin of Queen Elizabeth II.
Relevant evidence: Yes