In March 1810 he moved into HMS Boadicea (38 guns) and transported a larger landing party to Réunion and captured the island.[3] Meanwhile, a force led by Captain Samuel Pym RN was being out-flanked by French frigates attacking Grand Port, Mauritius.[3]HMS Africaine was captured by the French frigates Iphigénie and Astréein the engagement.[3] Rowley then re-captured Africaine the same day.[3] Vice-Admiral Albemarle Bertie arrived on 29 November and took the surrender of Mauritius on 3 December 1810.[3]
Rowley was then given command of HMS America (74 guns) in the Mediterranean. He was created a baronet in December 1813, promoted rear-admiral in 1814 and appointed KCB in 1815.[3]
He died on 10 January 1842, about age 76, in the Mount Campbell family estate at Drumsna in County Leitrim. He was buried and commemorated at the nearby Annaduff Parish Church. He was unmarried, without heir to his titles. He was survived by his younger brothers Vice Admiral Samuel Rowley (also commemorated within Annaduff Parish Church) and The Reverend John Rowley, incumbent rector at Virginia in County Cavan. The eldest brother William, Recorder of Kinsale, had died in 1812.
In literature
The 1809-1810 campaign was used by author Patrick O'Brian as the setting for the fourth in the series of Aubrey–Maturin series books, The Mauritius Command. The fictional Captain Jack Aubrey takes the place of Rowley in the novel.