Question: Thomas married Elizabeth, the widow of John Stewart, 2nd Earl of Buchan, was the daughter of which Scottish nobleman and warlord?
Sentence (from "John Stewart, Earl of Buchan"): John Stewart, Earl of Buchan (c. 1381 – 17 August 1424) was a Scottish nobleman and soldier who fought alongside Scotland's French allies during the Hundred Years War.
Relevant evidence: No