Question: Elizabeth Capell, Countess of Essex's father was a supporter of what cause in the English Civil War?
Sentence (from "Algernon Percy, 10th Earl of Northumberland"): Algernon Percy, 10th Earl of Northumberland, 4th Baron Percy, KG (29 September 1602 – 13 October 1668) was an English military leader and a prominent supporter of the Parliamentary cause in the English Civil War.
Relevant evidence: Yes