Answer
Disaffected Presbyterians and Royalists were allowed to sit in Parliament by Richard Cromwell, who succeeded his father, Oliver Cromwell, as Lord Protector of England, Scotland, and Ireland in 1658. This move represented a shift from the more radical policies of the previous Parliament, which had been dominated by Independents and Republicans. Richard Cromwell's Parliament was more moderate and sought to find a compromise between the different factions in English society.