Question: Who is the paternal grandmother of Frances Crewe, Lady Crewe?
Sentence (from "Frances Crewe, Lady Crewe"): Frances Anne Crewe, Lady Crewe, "née" Greville (November 1748 – 23 December 1818), was the daughter of Fulke Greville, envoy extraordinary to the elector of Bavaria, and his Irish wife, Frances Macartney, who was a poet, best known for "A Prayer for Indifference".
Relevant evidence: Yes