In 1608 Sir Cahir O'Doherty launched a rebellion from Burt Castle. O'Doherty had served on the Crown's side during the recent war, and was a natural loyalist, but had been angered at his treatment by Docwra's replacement as Governor of Derry, George Paulet. O'Doherty and Hart were friends, and the night before the rising he invited him and his wife to dinner. O'Doherty then took Hart prisoner and captured Culmore. He used the fort's arsenal to arm his followers. O'Doherty then followed up his seizure of Culmore with the Burning of Derry. O'Doherty was subsequently defeated and killed at the Battle of Kilmacrennan and the rebellion collapsed.