List of monarchs of the British Isles by cause of death

Name House Born Reign Death Notes Kenneth I MacAlpin House of Alpin (Scotland) 810 843–858 13 February 858 (aged 47) Tumour Constantine II before 879 900–943 952 (aged 73-74) Eadred West Saxons (England) c. 923 946–955 23 November 955 (aged c. 32) Edgar the Peaceable c. 943 959–975 8 July 975 (aged 31/32) Ethelred II the Unready c. 968 978–1013
1014–1016 23 April 1016 (aged ~50) Edmund II Ironside c. 988/993 1016 30 November 1016 (aged 25-26) Sweyn Forkbeard Danish Kings (England) 17 April 963 1013–1014 3 February 1014 (aged 50) Malcolm II House of Alpin (Scotland) c. 980 1005–1034 25 November 1034 (aged 79/80) Cnut the Great Danish Kings (England) c. 995 1016–1035 12 November 1035 (aged ~45) Harold I Harefoot c. 1015 1035–1040 17 March 1040 Harthacnut 1018 1040–1042 8 June 1042 (aged 23-24) St Edward the Confessor West Saxon Restoration (England) c. 1004 1042–1066 4 January 1066 (aged 60-63) Edgar House of Dunkeld (Scotland) 1074 1097–1107 8 January 1107 [1] Alexander I c. 1078 1107–1124 23 April 1124 (aged 45) Edgar the Atheling West Saxon Restoration (England) c. 1051 1066 c. 1126 Proclaimed by surviving English nobles, clerics and magnates, but never crowned, as the Normans approached after Hastings. Henry I The Normans (England) c. September 1068 1100–1135 1 December 1135 (aged ~67) Died of food poisoning from eating “a surfeit of lampreysDavid I House of Dunkeld (Scotland) 1084 1124–1153 24 May 1153 (aged 68-69) Died of illness. Stephen of Blois House of Blois (England) c. 1096 1135–1154 25 October 1154 (aged ~58) Stomach disease Malcolm IV House of Dunkeld (Scotland) 23 April/24 May 1141 1153–1165 9 December 1165 (aged 24) His premature death may have been hastened by osteitis deformans.[2] Matilda (Empress Maud) Angevins or Plantagenets (England) February 1102 1141 10 September 1167 (aged 65) Henry II 5 March 1133 1154–1189 6 July 1189 (aged 56) He collapsed into shock and fever and eventually died. William I House of Dunkeld (Scotland) c. 1143 1165–1214 4 December 1214 (aged 71-72) Natural causes John “Lackland” Monarchs of England and Ireland (England) 24 December 1166 1199–1216 19 October 1216 (aged 49) Retreating from the French invasion, John crossed the marshy area known as The Wash in East Anglia and eventually died from dysentery. Alexander II House of Dunkeld (Scotland) 24 August 1198 1214–1249 6 July 1249 (aged 50) Died after suffering a fever on the Isle of Kerrera in the Inner Hebrides. Henry III Monarchs of England and Ireland (England) 1 October 1207 1216–1272 16 November 1272 (aged 65) Died of illness. Margaret House of Sverre Dunkeld (Scotland) 9 April 1283 1286–1290 26 September 1290 (aged 7) Food poisoning and sea sickness. Edward I “Longshanks” House of Plantagenet (England) 17 June 1239 1272–1307 7 July 1307 (aged 68) Dysentery (confirmed); cancer (possible) John Balliol House of Balliol (Scotland) c. 1249 1292–1296 c. November 1314 (aged ~65) Natural causes Robert I the Bruce House of Bruce (Scotland) 11 July 1274 1306–1329 7 June 1329 (aged 54) Suffered for some years from what some contemporary accounts describe as an “unclean ailment”; the traditional story is that he died of leprosy, but this is disputed. Other suggestions include syphilis, psoriasis, and a series of strokes. Edward Balliol House of Balliol (Scotland) c. 1283 1332–1336 c. 1364 (aged ~81) Natural causes David II House of Bruce (Scotland) 5 March 1324 1329–1371 22 February 1371 (aged 46) Natural causes Edward III Monarchs of England and Ireland (England) 13 November 1312 1327–1377 21 June 1377 (aged 64) Died of a stroke Robert II House of Stuart (Scotland) 2 March 1316 1371–1390 19 April 1390 (aged 74) Died of old age. Robert III c. 1340 1390–1406 4 April 1406 (aged 68-69) Death said to have been caused by the shock of hearing that his son James (later King James I of Scotland) had been captured by the English. Henry IV House of Lancaster (England) c. April 1367 1399–1413 20 March 1413 (aged 45) Several years of ill health: some type of visible skin ailment. Leprosy is also rumoured to have been possible. Henry V 16 September 1386 1413–1422 31 August 1422 (aged 35) Natural causes, probably dysentery Edward IV House of York (England) 28 April 1442 1461–1470
1471–1483 9 April 1483 (aged 40) Unclear, possibly apoplexy brought on by excess. Henry VII House of Tudor (England) 28 January 1457 1485–1509 21 April 1509 (aged 52) Tuberculosis James V House of Stuart (Scotland) 10 April 1512 1513–1542 14 December 1542 (aged 30) Died of ill health shortly after the Battle of Solway Moss Henry VIII House of Tudor (England) 28 June 1491 1509–1547 28 January 1547 (aged 55) Suffered from gout and obesity. Obesity dates from a jousting accident in 1536 in which he suffered a leg wound. This prevented him from exercising and gradually became ulcerated. Also possibly suffered from syphilis and/or diabetes Edward VI 12 October 1537 1547–1553 6 July 1553 (aged 15) Tuberculosis, arsenic poisoning, or congenital syphilis? Mary I 18 February 1516 1553–1558 17 November 1558 (aged 42) Possibly ovarian cancer Philip House of Habsburg (England) 21 May 1527 1554–1558 13 September 1598 (aged 71) Cancer Elizabeth I House of Tudor (England) 7 September 1533 1558–1603 24 March 1603 (aged 69) Suffered from frailty and insomnia James VI and I House of Stuart 19 June 1566 1567–1625 (Scotland)
1603-1625 (England) 27 March 1625 (aged 58) Suffered from senility and died of ‘tertian ague‘, probably brought on by kidney failure and a stroke Oliver Cromwell (Interregnum) 25 April 1599 1653-1658 3 September 1658 (aged 59) Struck by a sudden bout of malarial fever, followed directly by an attack of urinary/kidney symptoms. Charles II House of Stuart 29 May 1630 1660–1685 England
1649–1651 and 1660–1685 Scotland
(1649–1685 de jure) 6 February 1685 (aged 54) Died suddenly of uremia James II and VII 14 October 1633 1685–1688 16 September 1701 (aged 67) Stroke Mary II 30 April 1662 1689–1694 28 December 1694 (aged 32) Died of smallpox at Kensington Palace Richard Cromwell (Interregnum) 4 October 1626 1658-1659 12 July 1712 (aged 85) The longest-lived British head of state until Elizabeth II. Anne House of Stuart 6 February 1665 1702–1714 1 August 1714 (aged 49) Died of suppressed gout, ending in erysipelas, an abscess and fever. Her 17 ill-fated pregnancies perhaps ravaged her body. George I House of Hanover 28 May 1660 1714–1727 11 June 1727 (aged 67) Stroke George II 30 October 1683 1727–1760 25 October 1760 (aged 76) Aortic dissection while on the toilet George III 4 June 1738 1760–1820 29 January 1820 (aged 81) Porphyria (disputed), a genetic disorder. Suffered bouts of mental illness from 1788 onwards. George IV 12 August 1762 1820–1830 26 June 1830 (aged 67) Upper gastrointestinal bleeding caused by the rupture of gastric varices. Developed cataracts, alcoholism, opioid dependence, obesity, gout, oedema, arteriosclerosis and possibly porphyria and cancer. William IV 21 August 1765 1830–1837 20 June 1837 (aged 71) Congestive heart failure and bronchopneumonia. Victoria 24 May 1819 1837–1901 22 January 1901 (aged 81) Age and heart failure Edward VII House of Saxe-Coburg-Gotha 9 November 1841 1901–1910 6 May 1910 (aged 68) Bed-ridden by bronchitis; died of a myocardial infarction George VI House of Windsor 14 December 1895 1936–1952 6 February 1952 (aged 56) Had lung cancer and arteriosclerosis due to heavy cigarette smoking; died in his sleep of a coronary thrombosis Edward VIII 23 June 1894 1936 28 May 1972 (aged 77) Throat cancer Elizabeth II 21 April 1926 1952–2022 8 September 2022 (aged 96) Old age; died in Balmoral Castle, Scotland