Question: Who is Isabella, Countess Of Lennox's father-in-law?
Sentence (from "Isabella, Countess of Lennox"): As the wife of Murdoch Stewart, 2nd Duke of Albany (d.1425), she was also Duchess of Albany (1420–1425), but in 1425 her family would be almost completely destroyed when her husband, father and two sons were executed by the vengeful King James I of Scotland.
Relevant evidence: Yes