Question: Who is Edmund Butler, 2Nd Viscount Mountgarret's paternal grandfather?
Sentence (from "Richard Butler, 1st Viscount Mountgarret"): Richard Butler, 1st Viscount Mountgarret (1500 – 20 May 1571) was the son of Piers Butler, 8th Earl of Ormond and Lady Margaret Fitzgerald.
Relevant evidence: Yes