What year did this grandfather Maria Clementina Sobieska become king of Poland and Grand Duke of Lithuania?
John III Sobieski: John III Sobieski (Polish: "Jan III Sobieski" ; Lithuanian: "Jonas III Sobieskis" ; Latin: "Ioannes III Sobiscius" ; 17 August 1629 – 17 June 1696), was King of Poland and Grand Duke of Lithuania from 1674 until his death, and one of the most notable monarchs of the Polish–Lithuanian Commonwealth.
i don't know