The Wars of the Three Kingdoms (incorporating the Irish Rebellion of 1641, Confederate Ireland, the Cromwellian conquest of Ireland and the Irish Confederate Wars) took place between 1639 and 1651. Charles I was executed in 1649 and his son Charles II was recognised by some Irish lords as King of Ireland. The Interregnum began with England, Ireland, Scotland and Wales ruled by the Council of State, then the Lord Protector Oliver Cromwell (1649–1658) and his son Richard Cromwell (1658–1659). The Restoration in Ireland was effected in 1660 without major opposition, Charles II being declared king on 14 May 1660 by the Irish Convention.