Question: Who is the paternal grandmother of John St John, 12Th Baron St John Of Bletso?
Sentence (from "John St John, 11th Baron St John of Bletso"): The son of Andrew St John and his wife Jane Blois, daughter of William Blois of Cockfield Hall, Suffolk, he was a nephew of Paulet St John, 8th Baron St John of Bletso and succeeded his brother Rowland St John, 10th Baron St John of Bletso to the family title in 1722.
Relevant evidence: Yes