Chief Mouser to the Cabinet Office
The Chief Mouser to the Cabinet Office is the official cat of the Prime Minister of the United Kingdom. The cat works at 10 Downing Street. Only three cats, Humphrey, Sybil and Larry, have been given the title officially. Other cats have been given this title as a nickname, usually by the British press. There has been a Downing Street cat mouser and pet since the reign of Henry VIII.<ref>(archive not available)</small></ref>