Question: What is the date of death of Catherine O'Neill, Countess Of Tyrone's husband?
Sentence (from "Hugh O'Neill, Earl of Tyrone"): O'Neill's career was played out against the background of the Tudor conquest of Ireland, and he is best known for leading the resistance during the Nine Years' War, the strongest threat to English authority in Ireland since the revolt of Silken Thomas.
Relevant evidence: No