Lord Protector or otherwise unable to rule. Notable cases in England are: and in Scotland: The Lord Protector of the Commonwealth of England, Scotland and Ireland was the title of the head of state during the Commonwealth (or, to monarchists, the Interregnum), following the first period when a Council of State held executive power. The title was held by Oliver Cromwell (December 1653 – September 1658) and subsequently his son and designated successor Richard Cromwell (September 1658 – May 1659) during what is now known as The Protectorate. The 1653 Instrument of Government (republican constitution) stated that— Oliver Cromwell, Captain-General of the
Lord of Parliament Lord of Parliament A Lord of Parliament () was the holder of the lowest form of peerage entitled as of right to take part in sessions of the pre-Union Parliament of Scotland. Since that Union in 1707, it has been the lowest rank of the Peerage of Scotland, ranking below a viscount. A Lord of Parliament is said to hold a "Lordship of Parliament". The peerage of Scotland differs from those of England and Ireland, in that its lowest rank is not that of baron. In Scotland, the term "baron" refers to a feudal baron, considered to be a minor