History of the term
The term baronet has medieval origins. Sir Thomas de La More (1322), describing the Battle of Boroughbridge, mentioned that baronets took part, along with barons and knights. Edward III is known to have created eight baronets in 1328.
Present-day Baronets date from 1611 when James I granted Letters Patent to 200 gentlemen of good birth with an income of at least £1,000 a year; in return for the honour, each was required to pay for the upkeep of thirty soldiers for three years amounting to £1,095, in those days a very large sum. In 1619 James I established the Baronetage of Ireland; Charles I in 1625 created the Baronetages of Scotland and Nova Scotia. The new baronets were each required to pay 2,000 marks or to support six colonial settlers for two years. Over a hundred of these baronetcies, now familiarly known as Scottish baronetcies, survive to this day.
As a result of the Union of England and Scotland in 1707, all future creations were styled baronets of Great Britain. Following the Union of Great Britain and Ireland in 1801, new creations were styled as baronets of the United Kingdom.
Under royal warrants of 1612 and 1613, certain privileges were accorded to baronets. Firstly, no person or persons should have place between baronets and the younger sons of peers. Secondly, the right of knighthood was established for the eldest sons of baronets (this was later revoked by George IV in 1827), and thirdly, baronets were allowed to augment their armorial bearings with the Arms of Ulster on an inescutcheon: "in a field Argent, a Hand Geules (or a bloudy hand)". These privileges were extended to baronets of Ireland, and for baronets of Scotland the privilege of depicting the Arms of Nova Scotia as an augmentation of honour. The former applies to this day for all baronets of Great Britain and of the United Kingdom created subsequently.
The title of baronet was initially conferred upon noblemen who lost the right of individual summons to Parliament, and was used in this sense in a statute of Richard II. A similar title of lower rank was banneret.
Since 1965 only one new baronetcy has been created, for Sir Denis Thatcher on 7 December 1990, husband of a former British Prime Minister, Margaret Thatcher (later Baroness Thatcher); their eldest son, Sir Mark Thatcher, succeeded as 2nd Baronet upon his father's death in 2003.