Question: Who is Maria Józefa Sobieska's mother-in-law?
Sentence (from "Konstanty Władysław Sobieski"): Konstanty Władysław Sobieski (1 May 1680 – 28 February 1726) was a Polish prince, nobleman, politician, diplomat, scholar and the son of John III Sobieski, King of Poland, and his wife, Marie Casimire Louise de la Grange d'Arquien.
Relevant evidence: Yes