Question: When did John Gathorne-Hardy, 2Nd Earl Of Cranbrook's father die?
Sentence (from "John Gathorne-Hardy, 2nd Earl of Cranbrook"): He assumed the additional surname of Gathorne by Royal licence in 1878 and when his father was elevated to the peerage as Earl of Cranbrook in 1892, he gained the courtesy title of Lord Medway.
Relevant evidence: No