Drury was admitted to Lincoln's Inn on 12 February 1517,[REF] and entered the service of King Henry VIII before his father's death.
During the succession crisis after the death of King Edward VI, although he had been expected to aid Northumberland in his attempt to place Lady Jane Grey on the throne, Drury instead threw his support behind Princess Mary, and was appointed to the Privy Council early in Mary's reign [REF].