Question: Who is William Foster (Bishop)'s paternal grandmother?
Sentence (from "William Foster (bishop)"): The younger son of Anthony Foster, Chief Baron of the Irish Exchequer, and his first wife Elizabeth Burgh, he was chaplain to the Irish House of Commons (1780–89), then successively Bishop of Cork and Ross (1789–1790), Bishop of Kilmore (1790–1796) and Bishop of Clogher (1796–1797).
Relevant evidence: Yes