Question: Who is the mother-in-law of Elizabeth De Burgh, 4Th Countess Of Ulster?
Sentence (from "Elizabeth de Burgh, 4th Countess of Ulster"): Elizabeth de Burgh, Duchess of Clarence, "suo jure" 4th Countess of Ulster and 5th Baroness of Connaught (6 July 1332 – 10 December 1363) was a Norman-Irish noblewoman who married Lionel of Antwerp, 1st Duke of Clarence.
Relevant evidence: Yes