 He was invested in 1666 with the Order of the Garter (which had been bestowed upon him in 1650), and was advanced to a dukedom on 16 March 1665.The Indemnity and Oblivion Act, which became law on 29 August 1660, pardoned all past treason against the crown, but specifically excluded those involved in the trial and execution of Charles I. Thirty-one of the 59 commissioners (judges) who had signed the death warrant in 1649 were living.The regicides were hunted down; some escaped but most were found and put on trial.