Question: Name the husband of Louise Mountbatten (previously Princess Louise of Battenberg) for whom the Teaterladan or barn theatre in Sweden was jointly restored?
Sentence (from "Battenberg family"): Most members of the family, residing in the United Kingdom, had renounced their German titles in 1917, due to rising anti-German sentiment among the British public during World War I, and changed their name to "Mountbatten", an anglicised version of Battenberg.
Relevant evidence: No