. . . "III. That all writs, processes, commissions, patents, grants, and other things, which now run in the name and style of the keepers of the liberty of England by authority of Parliament, shall run in the name and style of the Lord Protector, from whom, for the future, shall be derived all magistracy and honours in these three nations; and have the power of pardons (except in case of murders and trea" . .