[4] His older brother James succeeded as the 3rd Baron Hamilton of Strabane as a young child.
The rebel leader Phelim O'Neill captured and burned Strabane Castle and took him, together with his mother and siblings, as prisoners to Kinard, his usual place of residence.
[6] In 1649, when George was about 12, during the Irish Confederate Wars, Strabane Castle was attacked again, this time by Robert Monro and his Covenanter army.
Having resisted several attacks, the fort finally surrendered to Coote on terms in August and the garrison was allowed to march away.
[13] Christopher Fagan had lost his estates during the Cromwellian conquest of Ireland but would get them back in 1663 as an "innocent papist" in the terms of the Act of Settlement 1662.
George and Elizabeth had two sons:[16] —and two daughters: After the Restoration (1660), Lord Strabane, as he was now, obtained the return of most of the family lands, which had been confiscated in 1650 by the Parliamentarians.
[20] He died on 14 April 1668 at Kenure House, Rush, Dublin, and was buried at nearby St. Mechlin's Church.