Question: Who is the paternal grandmother of Piers Butler, 3Rd Viscount Galmoye?
Sentence (from "Edward Butler, 2nd Viscount Galmoye"): Edward Butler, 2nd Viscount Galmoye (c. 1627– after 24 October 1667) was the son of Piers Butler of Duiske and Margaret Netterville, daughter of Nicholas Netterville, 1st Viscount Netterville.
Relevant evidence: Yes