Question: Who is John De Bohun, 5Th Earl Of Hereford's maternal grandmother?
Sentence (from "John de Bohun, 5th Earl of Hereford"): John de Bohun, 5th Earl of Hereford (23 November 1306 – 20 January 1336) was born in St Clement's, Oxford to Humphrey de Bohun, 4th Earl of Hereford and Elizabeth of Rhuddlan, a daughter of Edward
Relevant evidence: Yes