It is much clearer how Bromley came to be MP for Guildford in the parliament which assembled in January 1563. The seat was in the gift of Henry FitzAlan, 19th Earl of Arundel, a Shropshire landowner and the high steward of the borough, who was a friend and patron of Bromley. Bromley was to serve as one of the executors of Arundel's will. In 1566, when he was appointed Recorder of London, he became an MP for the City "ex officio", as the aldermen always chose the recorder and one of their own number as MPs. Richard Onslow had been recorder since 1563, succeeding Ralph Cholmley, who had died in office. Thus Bromley was now put forward as MP by two constituencies. However, parliament resolved the contradiction by deciding he should continue to represent Guildford. The London aldermen were forced to hold a by-election and chose Sir John White, a successful merchant in the trade with Spain. Bromley served in 1566 on a committee concerned with legal issues and another on the succession to the throne.