Given the task definition and input, reply with output. In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.

The majority of surviving buildings in the Historic Dockyard are Georgian. It was here that HMS Victory, Admiral Lord Nelson's flagship at Trafalgar, was built and launched in 1765. Sir Francis Drake learned his seamanship on the Medway; Sir John Hawkins founded a hospital in Chatham for seamen, and Nelson began _his_ Navy service at Chatham at the age of 12. <sep>, Pronoun: his
Nelson