Question: Who is the paternal grandmother of Robert De Vere, 5Th Earl Of Oxford?
Sentence (from "Robert de Vere, 5th Earl of Oxford"): Robert de Vere, 5th Earl of Oxford (c. 1220 – 1296) was the son and heir of Hugh de Vere, 4th Earl of Oxford, and chamberlain to Queen Eleanor.
Relevant evidence: Yes