Oliver Cromwell led the final siege of Pontefract Castle in November 1648. Charles I was executed in January, and Pontefract's garrison came to an agreement and Colonel Morrice handed over the castle to Major General John Lambert on 24 March 1649. Following requests from the townspeople, the grand jury at York, and Major General Lambert, on 27 March Parliament gave orders that Pontefract Castle should be "totally demolished & levelled to the ground" and materials from the castle would be sold off. Piecemeal dismantling after the main organised activity of slighting may have further contributed to the castle's ruined state.