Here's a list of English and British rulers from my Three Great Powers TL. I'll be adding the other nations here soon.
ENGLAND
Norman
Stephen I (1096-1154)
King 1135-1154
Grandson of William I
Eustace I* (1130-1156)
King 1154-1156
Son of Stephen I
Co-reigned with Henry II (1154-1156)
Henry II* (1133-1189)
King 1154-1189
Grandson of Henry I
Co-reigned with Eustace I (1154-1156) and Eustace II (1156-1189)
Eustace II* (1153-1216)
King 1156-1216
Son of Eustace I
Co-reigned with Henry II (1156-1189)
William III* (1186-1242)
King 1216-1242
Son of Eustace II
Regnant for Eustace II (1156-1171), Co-reigned with Eustace II (1189-1216)
John I (1194-1250)
King 1242-1250
Brother of William III
Henry III (1225-1279)
King 1250-1279
Son of John I
Henry IV (1248-1302)
King 1279-1302
Son of Henry III
Henry V (1271-1327)
King 1302-1327
Son of Henry IV
Henry VI (1299-1359)
King 1327-1359
Son of Henry V
Richard I (1295-1367)
King 1359-1367
Uncle of Henry V
Edward I (1331-1398)
King 1267-1398
Son of Richard I
Edward II (1353-1404)
King 1398-1404
Son of Edward I
Eustace III (1356-1409)
King 1404-1409
Brother of Edward II
Richard II (1378-1434)
King 1409-1434
Son of Eustace III
Edward III (1399-1461)
King 1334-1461
Son of Richard II
Edward IV (1423-1463)
King 1461-1463
Son of Edward III
Henry VII (1402-1478)
King 1463-1478
Uncle of Edward IV
Tudor
Henry IIX (1409-1486)
King 1478-1486
Great-great-grandson of Eustace III
Edward V (1431-1501)
King 1386-1501
Son of Henry IIX
John II (1460-1525)
King 1501-1525
Son of Edward V
Edward VI (1504-1529)
King 1525-1529
Grandson of John II
Executed in 1529
Richard III (1507-1575)
King 1529-1575
Brother of Edward VI
Elizabeth I (1529-1585)
Queen 1575-1585
Daughter of Richard III
Jessica I (1531-1601)
Queen 1585-1601
Sister of Elizabeth I
Henry IX (1535-1613)
King 1601-1613
Cousin of Jessica I
George I (1561-1637)
King 1613-1637
Son of Henry IX
Edward VII (1587-1655)
King 1637-1653
Son of George I
Overthrown 1653
First Commonwealth (1655-1679)
Tudor, restored
Henry X (1611-1698)
King 1679-1698
Son of Edward VII
Richard IV (1634-1708)
King 1698-1708
Son of Henry X
Overthrown 1708
George II** (1651-1716)
King 1708-1716
Son-in-law of Richard IV
Co-reigned with Jessica II (1708-1716)
Jessica II** (1657-1719)
Queen 1708-1719
Daughter of Richard IV
Co-reigned with George II (1708-1716)
BRITANNIA
Orange-Nassau
George III (1679-1741)
Emperor 1719-1741
Son of George II and Jessica II
George IV (1701-1770)
Emperor 1741-1770
Son of George III
Frederick I (1705-1774)
Emperor 1770-1774
Son of George IV
George V*** (1729-1809)
Emperor 1774-1809
Son of Frederick I
Co-reigned with Adolphus I (1774-1809), William IV (1774-1801), and Edward IIX (1801-1809)
Adolphus I*** (1729-1814)
Emperor 1774-1814
Son of Frederick I
Co-reigned with George V (1774-1809), William IV (1774-1801), and Edward IIX (1801-1814)
William IV*** (1729-1801)
Emperor 1774-1801
Son of Frederick I
Co-reigned with Adolphus I (1774-1801) and George V (1774-1801)
Edward IIX*** (1747-1831)
Emperor 1801-1831
Son of William IV
Co-reigned with Co-reigned with Adolphus I (1801-1814), George V (1801-1809), Leopold I (1809-1831), and George VI (1828-1831)
Leopold I*** (1751-1828)
Emperor 1809-1828
Son of Adolphus I
Co-reigned with Adolphus I (1809-1814) and Edward IIX (1809-1831)
George VI*** (1753-1845)
Emperor 1814-1845
Son of George V
Co-reigned with Edward IIX (1814-1831), Augustus I (1828-1845), and Arthur I (1831-1845)
Overthrown 1845
Augustus I*** (1755-1845)
Emperor 1828-1845
Brother of Leopold I
Co-reigned with Edward IIX (1828-1831) and Augustus I (1831-1845)
Overthrown 1845
Arthur I*** (1798-1845)
Emperor 1831-1845
Son of Edward IIX
Co-reigned with George VI (1831-1845) and Augustus I (1831-1845)
Overthrown 1845
Second Commonwealth (1845-1852)
Orange-Nassau, restored
Adolphus II (1771-1856)
Emperor 1852-1856
Son of Adolphus I
George VII (1809-1874)
Emperor 1856-1874
Son of Adolphus II
Anthony I (1832-1879)
Emperor 1874-1879
Son of George VII
Richard V (1856-1908)
Emperor 1874-1899
Son of Anthony I
Overthrown 1899
Hapsburg-Sussex-Valmont
William V (1862-1909)
Emperor 1899-1909
Great-great-grandson of George V
William VI (1891-1934)
Emperor 1909-1934
Son of William V
Paul I (1893-1946)
Emperor 1934-1946
Brother of William VI
Paul II (1919-1981)
Emperor 1946-1981
Son of Paul I
William VII (1926-1997)
Emperor 1981-1997
Brother of Paul II
Roland I (1967-2003)
Emperor 1997-2003
Son of William IV
William IIX****‪ (1969-present)
Senior Emperor 2003-present
Brother of Roland I
Regnant for Roland I 2000-2003
Co-reigned with Leopold III (2003-present), Edward IX (2003-present), and Margaret I (2003-present)
Leopold III‪**** (1964-present)
Junior Emperor 2003-present
Cousin of William IIX
Co-reigned with William IIX (2003-present), Edward IX (2003-present), and Margaret I (2003-present)
Edward IX****‪ (1969-present)
Senior Emperor 2003-present
Brother of William IIX
Co-reigned with William IIX (2003-present), Leopold III (2003-present), and Margaret I (2003-present)
Margaret I‪**** (1971-present)
Junior Empress 2003-present
Niece of Edward IX
Co-reigned with William IIX (2003-present), Leopold III (2003-present), and Edward IX (2003-present)
*-members of the First Diarchy (1154-1216)
**-members of the Second Diarchy (1708-1716)
***-Members of the Triarchy (1774-1845)
****-Members of the Tetrarchy (2003-present)
ENGLAND
Norman
Stephen I (1096-1154)
King 1135-1154
Grandson of William I
Eustace I* (1130-1156)
King 1154-1156
Son of Stephen I
Co-reigned with Henry II (1154-1156)
Henry II* (1133-1189)
King 1154-1189
Grandson of Henry I
Co-reigned with Eustace I (1154-1156) and Eustace II (1156-1189)
Eustace II* (1153-1216)
King 1156-1216
Son of Eustace I
Co-reigned with Henry II (1156-1189)
William III* (1186-1242)
King 1216-1242
Son of Eustace II
Regnant for Eustace II (1156-1171), Co-reigned with Eustace II (1189-1216)
John I (1194-1250)
King 1242-1250
Brother of William III
Henry III (1225-1279)
King 1250-1279
Son of John I
Henry IV (1248-1302)
King 1279-1302
Son of Henry III
Henry V (1271-1327)
King 1302-1327
Son of Henry IV
Henry VI (1299-1359)
King 1327-1359
Son of Henry V
Richard I (1295-1367)
King 1359-1367
Uncle of Henry V
Edward I (1331-1398)
King 1267-1398
Son of Richard I
Edward II (1353-1404)
King 1398-1404
Son of Edward I
Eustace III (1356-1409)
King 1404-1409
Brother of Edward II
Richard II (1378-1434)
King 1409-1434
Son of Eustace III
Edward III (1399-1461)
King 1334-1461
Son of Richard II
Edward IV (1423-1463)
King 1461-1463
Son of Edward III
Henry VII (1402-1478)
King 1463-1478
Uncle of Edward IV
Tudor
Henry IIX (1409-1486)
King 1478-1486
Great-great-grandson of Eustace III
Edward V (1431-1501)
King 1386-1501
Son of Henry IIX
John II (1460-1525)
King 1501-1525
Son of Edward V
Edward VI (1504-1529)
King 1525-1529
Grandson of John II
Executed in 1529
Richard III (1507-1575)
King 1529-1575
Brother of Edward VI
Elizabeth I (1529-1585)
Queen 1575-1585
Daughter of Richard III
Jessica I (1531-1601)
Queen 1585-1601
Sister of Elizabeth I
Henry IX (1535-1613)
King 1601-1613
Cousin of Jessica I
George I (1561-1637)
King 1613-1637
Son of Henry IX
Edward VII (1587-1655)
King 1637-1653
Son of George I
Overthrown 1653
First Commonwealth (1655-1679)
Tudor, restored
Henry X (1611-1698)
King 1679-1698
Son of Edward VII
Richard IV (1634-1708)
King 1698-1708
Son of Henry X
Overthrown 1708
George II** (1651-1716)
King 1708-1716
Son-in-law of Richard IV
Co-reigned with Jessica II (1708-1716)
Jessica II** (1657-1719)
Queen 1708-1719
Daughter of Richard IV
Co-reigned with George II (1708-1716)
BRITANNIA
Orange-Nassau
George III (1679-1741)
Emperor 1719-1741
Son of George II and Jessica II
George IV (1701-1770)
Emperor 1741-1770
Son of George III
Frederick I (1705-1774)
Emperor 1770-1774
Son of George IV
George V*** (1729-1809)
Emperor 1774-1809
Son of Frederick I
Co-reigned with Adolphus I (1774-1809), William IV (1774-1801), and Edward IIX (1801-1809)
Adolphus I*** (1729-1814)
Emperor 1774-1814
Son of Frederick I
Co-reigned with George V (1774-1809), William IV (1774-1801), and Edward IIX (1801-1814)
William IV*** (1729-1801)
Emperor 1774-1801
Son of Frederick I
Co-reigned with Adolphus I (1774-1801) and George V (1774-1801)
Edward IIX*** (1747-1831)
Emperor 1801-1831
Son of William IV
Co-reigned with Co-reigned with Adolphus I (1801-1814), George V (1801-1809), Leopold I (1809-1831), and George VI (1828-1831)
Leopold I*** (1751-1828)
Emperor 1809-1828
Son of Adolphus I
Co-reigned with Adolphus I (1809-1814) and Edward IIX (1809-1831)
George VI*** (1753-1845)
Emperor 1814-1845
Son of George V
Co-reigned with Edward IIX (1814-1831), Augustus I (1828-1845), and Arthur I (1831-1845)
Overthrown 1845
Augustus I*** (1755-1845)
Emperor 1828-1845
Brother of Leopold I
Co-reigned with Edward IIX (1828-1831) and Augustus I (1831-1845)
Overthrown 1845
Arthur I*** (1798-1845)
Emperor 1831-1845
Son of Edward IIX
Co-reigned with George VI (1831-1845) and Augustus I (1831-1845)
Overthrown 1845
Second Commonwealth (1845-1852)
Orange-Nassau, restored
Adolphus II (1771-1856)
Emperor 1852-1856
Son of Adolphus I
George VII (1809-1874)
Emperor 1856-1874
Son of Adolphus II
Anthony I (1832-1879)
Emperor 1874-1879
Son of George VII
Richard V (1856-1908)
Emperor 1874-1899
Son of Anthony I
Overthrown 1899
Hapsburg-Sussex-Valmont
William V (1862-1909)
Emperor 1899-1909
Great-great-grandson of George V
William VI (1891-1934)
Emperor 1909-1934
Son of William V
Paul I (1893-1946)
Emperor 1934-1946
Brother of William VI
Paul II (1919-1981)
Emperor 1946-1981
Son of Paul I
William VII (1926-1997)
Emperor 1981-1997
Brother of Paul II
Roland I (1967-2003)
Emperor 1997-2003
Son of William IV
William IIX****‪ (1969-present)
Senior Emperor 2003-present
Brother of Roland I
Regnant for Roland I 2000-2003
Co-reigned with Leopold III (2003-present), Edward IX (2003-present), and Margaret I (2003-present)
Leopold III‪**** (1964-present)
Junior Emperor 2003-present
Cousin of William IIX
Co-reigned with William IIX (2003-present), Edward IX (2003-present), and Margaret I (2003-present)
Edward IX****‪ (1969-present)
Senior Emperor 2003-present
Brother of William IIX
Co-reigned with William IIX (2003-present), Leopold III (2003-present), and Margaret I (2003-present)
Margaret I‪**** (1971-present)
Junior Empress 2003-present
Niece of Edward IX
Co-reigned with William IIX (2003-present), Leopold III (2003-present), and Edward IX (2003-present)
*-members of the First Diarchy (1154-1216)
**-members of the Second Diarchy (1708-1716)
***-Members of the Triarchy (1774-1845)
****-Members of the Tetrarchy (2003-present)