Arranged Alphabetically by Sovereigns
| Sovereign | Reign Began | Reign Ended |
| Anne | Mar. 8, 1702 | Aug. 1, 1714 |
| Charles I | Mar. 27, 1625 | Jan. 30, 1649 |
| Charles II | Jan. 30, 1649 | Feb. 6, 1685 |
| Commonwealth & Protectorate |
Jan. 30, 1649 | May 29, 1660 |
| Edward I | Nov. 20, 1272 | July 7, 1307 |
| Edward II | July 8, 1307 | Jan. 20, 1327 |
| Edward III | Jan. 25, 1326 | June 21, 1377 |
| Edward IV | Mar. 4, 1461 | Apr. 9, 1483 |
| Edward V | Apr. 9, 1483 | June 25, 1483 |
| Edward VI | Jan. 28, 1547 | July 6, 1553 |
| Edward VII | Jan. 22, 1901 | May 6, 1910 |
| Edward VIII | Jan. 20, 1936 | Dec. 11, 1936 |
| Elizabeth | Nov. 17, 1558 | Mar. 24, 1603 |
| George I | Aug. 1, 1714 | June 11, 1727 |
| George II | June 11, 1727 | Oct. 25, 1760 |
| George III | Oct. 25, 1760 | Jan. 29, 1820 |
| George IV | Jan. 29, 1820 | June 26, 1830 |
| George V | May 6, 1910 | Jan. 20, 1936 |
| George VI | Dec. 11, 1936 | Reigning* |
| Henry I | Aug. 5, 1100 | Dec. 1, 1135 |
| Henry II | Dec. 19, 1154 | July 6, 1189 |
| Henry III | Oct. 28, 1216 | Nov. 16, 1272 |
| Henry IV | Sept. 30, 1399 | Mar. 20, 1413 |
| Henry V | Mar. 21, 1413 | Aug. 31, 1422 |
| Henry VI | Sept. 1, 1422 | Mar. 4, 1461 |
| Henry VII | Aug. 22, 1485 | Apr. 21, 1509 |
| Henry VIII | Apr. 22, 1509 | Jan. 28, 1547 |
| James I | Mar. 24, 1603 | Mar. 27, 1625 |
| James II | Feb. 6, 1685 | Dec. 11, 1688 |
| John | May 27, 1199 | Oct. 19, 1216 |
| Mary | July 26, 1553 | July 24, 1554 |
| Phillip & Mary | July 25, 1554 | Nov. 17, 1558 |
| Richard I | Sept. 3, 1189 | Apr. 6, 1199 |
| Richard II | June 22, 1377 | Sept. 29, 1399 |
| Richard III | June 26, 1483 | Aug. 22, 1485 |
| Stephen | Dec. 26, 1135 | Oct. 25, 1154 |
| Victoria | June 20, 1837 | Jan. 22, 1901 |
| William I | Oct. 14, 1066 | Sept. 9, 1087 |
| William II | Sept. 26, 1087 | Aug. 2, 1100 |
| William & Mary | Feb. 13, 1689 | Dec. 27, 1694 |
| William III | Dec. 28, 1694 | Mar. 8, 1702 |
| William IV | June 26, 1830 | June 20, 1837 |
Although Charles II did not become King, de facto, until May 29, 1660, his regnal years were computed from the death of his father, January 30th, 1648-9, so that the year of his restoration is called the twelth year of his reign.
Oliver Cromwell assumed the title of "The Lord Protector of the Commonwealth of England, Scotland and Ireland" on Dec. 16th, 1653, the title of "His Highness." Upon his death on Sept. 3d/13th, 1658, his son, Richard Cromwell, was proclaimed Protector the next day, Sept. 4th/14th, and resigned the office in May, 1659.
* Obviously, this table is out-of-date, but I am reproducing it as it was found.
HIGHNESS. - Black's 3rd
A title of honor given to princes. The kings of England, before the time of James I., were not usually saluted with the title of "Majesty," but with that of "Highness." The children of crowned heads generally receive the style of "Highness." Wharton.
MAJESTY. - Black's 3rd
Royal dignity. A term used of kings and emporers as a title of honor.