Question: What is the cause of death of Lionel Of Antwerp, 1St Duke Of Clarence's mother?
Sentence (from "Ralph Basset, 3rd Baron Basset of Drayton"): Ralph Basset, 3rd Baron Basset of Drayton( or alternatively 4th Baron Basset) KG( 1335 – 10 May 1390) was a medieval English soldier knight, one of the earliest appointed Knights of the Garter.
Relevant evidence: No