Question: What is the date of birth of Lord Edward Cavendish's father?
Sentence (from "Lord Edward Cavendish"): His father and his two surviving brothers were all Members of Parliament (MPs): his eldest brother Spencer, MP for North Lancashire 1857–91 and later 8th Duke of Devonshire, led the Liberal Party and was asked three times to be Prime Minister by Queen Victoria; the middle brother, Frederick was MP for the West Riding and Chief Secretary for Ireland and was assassinated in 1882.
Relevant evidence: No