Ambrose Rookwood (1664–1696) was an English Jacobite soldier, a conspirator and commander in the assassination plot of 1696 intended to kill William III of Great Britain.
[1] Rookwood remained an adherent of the House of Stuart, and early in 1696 Sir George Barclay enlisted his services in the plot to kidnap or assassinate William III.
In February Thomas Prendergast, one of the conspirators, turned king's evidence, and the plot was revealed.
[1] On 7 April a true bill of high treason was found against Rookwood at the Middlesex county sessions.
[2][3] Rookwood pleaded not guilty, and was defended by Sir Bartholomew Shower and Constantine Phipps.