The title of King of Ireland was re-created in 1542 by Henry VIII, then King of England, of the Tudor dynasty. English rule of law was reinforced and expanded in Ireland during the latter part of the 16th century, leading to the Tudor conquest of Ireland. A near complete conquest was achieved by the turn of the 17th century, following the Nine Years’ War and the Flight of the Earls.
This control was further consolidated during the wars and conflicts of the 17th century, which witnessed English and Scottish colonisation in the Plantations of Ireland, the Wars of the Three Kingdoms and the Williamite War. Irish losses during the Wars of the Three Kingdoms (which, in Ireland, included the Irish Confederacy and the Cromwellian conquest of Ireland) are estimated to include 20,000 battlefield casualties. 200,000 civilians are estimated to have died as a result of a combination of war-related famine, displacement, guerilla activity and pestilence over the duration of the war. A further 50,000 were sent to slavery in the West Indies. Some historians estimate that as much as half of the pre-war population of Ireland may have died as a result of the conflict.