Thomas Peregrine Hopson replaced Governor Edward Cornwallis at Halifax. Hopson had been sent from Gibraltar to reinforce the Louisbourg garrison in 1746, after the New England and British forces captured it from the French. He took command of Île Royale in 1747 and, under the terms of the treaty of Aix-la-Chapelle, returned the island to the French in July of 1749.