Question: Who is Duke William Of Mecklenburg-Schwerin's mother-in-law?
Sentence (from "Princess Alexandrine of Prussia (1842–1906)"): Princess Frederica Wilhelmina Louise Elisabeth "Alexandrine" of Prussia (1 February 1842 – 26 March 1906) was a member of the House of Hohenzollern as the daughter of Prince Albert of Prussia and his wife Princess Marianne of the Netherlands.
Relevant evidence: Yes