Question: Who is Elizabeth Stuart, Countess Of Lennox's sibling-in-law?
Sentence (from "Elizabeth Stuart, Countess of Lennox"): Elizabeth Stuart, Countess of Lennox née Cavendish (31 March 1555 – 16 January 1582) was an English noblewoman and the wife of Charles Stuart, 1st Earl of Lennox.
Relevant evidence: Yes