 Oliver Cromwell, Henry Ireton, Judge Thomas Pride, and Judge John Bradshaw were posthumously attainted for high treason.Because Parliament is a court, the highest in the land, a bill of attainder is a legislative act declaring a person guilty of treason or felony, in contrast to the regular judicial process of trial and conviction.In January 1661, the corpses of Cromwell, Ireton and Bradshaw were exhumed and hanged in chains at Tyburn.