 Complete the following phrase:  Ballard entered the navy in December 1776, under the patronage of Captain the Honourable John Leveson-Gower, son of John Leveson-Gower, 1st Earl Gower, who was at that time the captain of the , which formed part of the fleet under the command of Admiral Keppel during the summer of 1778. In October 1779 he was transferred to the , Captain Mark Robinson, and was present in her when Sir George Rodney defeated the Spanish fleet off Cape St. Vincent on 16 January 1780. In the following July the Shrewsbury rejoined Rodneys fleet in the West Indies, was present off Martinique on 29 April 1781, and led the van in the 