 He was created a baronet on 22 May 1815 in recognition of the services of his father, the remainder being to his father's heirs-male.He rejoined the 6th in 1815, and served as a staff officer at the Battle of Waterloo, going on half-pay in 1816.Sir Guy married Frances Elizabeth Burgoyne on 17 January 1817, by whom he had one daughter before her death on 8 May 1818.