The Regna Imperial timeline began in 383 AD when two major events occurred; In Finland, the Kingdom of Satakunta negotiated to become part of the Kainuu Kingdom, and in Wales, the former princely families decided to unite the country under one ruler, Cunedda ap Edern, and started the dynasty that was to become known as the House of Vaughn.
In this timeline, Scotland became the principality that is gifted to the eldest son (or daughter in the case of no sons) of the reigning British monarch.
Norway remained an independent monarchy after the collapse of the initial Kalmar Union in 1440.
On May 4, 1808, King George III of Great Britain declares Australia to be an independent Kingdom after the troubles with the Rum Rebellion and proclaims his favourite nephew, James Louis Gustav, Viscount Burrows of Norfolk, as the new King of Australia. James was the second son of George's sister Louisa.
After the troubles with the Swedish royal family and the forced exile of King Gustav IV Adolf, the powers that be decided to bypass his brother Charles, who had no heirs, and elected Prince Magnus Kaarle Henrik of Finland as their new King in 1810 under the name Karl XIII Henrik.
In 1813, Austrian Emperor Ferdinand I married Princess Johanna Fredrika of Finland and together they had a son, who became Ferdinand II of Austria. The start of World War I is the assassination of the Austrian Emperor Franz IV, his son Crown Prince Franz Leopold and Crown Princess Stephanie.
George I of Greece (formerly Prince Wilhelm of Denmark) married Princess Fredrika Aeron of Finland in 1865, and their son Prince George is killed when saving Tsesarevich Nikolai from an assassination attempt in Japan in 1891. This meant this King George's second youngest son, Andrew, married Princess Marie Bonaparte and they became the parents of Philip, Duke of Edinburgh.
During the Russian Revolution, the King of Finland, Magnus I Kaarle, mounted a rescue mission for his cousin Tsar Nikolai II and his family. When the section of Jaegers reached Tsarskoye Selo in August 1917, the guards who were minding the Imperial family opened fire on the Tsar and family, killing the Tsar, Tsarina and the three oldest Grand Duchesses. The Jaegers were able to rescue Grand Duchess Anastasia and Tsesarevich Alexei, who were brought back to Helsinki and were cared for by King Magnus and his wife, Anastasia and Alexei eventually marrying into the Finnish royal family. Anastasia had a daughter and Alexei had a son before he died in 1938 during the royal family's evacuation of Helsinki. The current head of the Romanov family is Prince Nikolai Alexandrovich, the grandson of Tsesarevich Alexei.
After the Portuguese declared themselves a republic and King Manuel II fled to England, his marriage to Princess Alexandra Jette of Finland allowed him the influence (through his wife's mother Maud, the sister of King George V of Great Britain, and those of the other major powers, as well as the Finnish monarchy's wealth) to persuade the Portuguese people to reinstate him as King, which they did in 1915 and have remained on the throne since. The current monarch is Manuel III, after his father died in 1998.
Following World War II, the great powers realised that the situation with Nazi Germany would not have happened if the Austrian Imperial family had still been on the throne, so a referendum was held in which the people unanimously voted for restoring the monarchy, which happened on January 1 1946 but the throne was inherited by former Emperor Franz IV's son, Karl Joseph Ludwig Franz Johannes Marcelin, who became Franz V. The current Emperor of Austria is Ferdinand IV, who inherited the throne in 2007.
The Swedish royal family descended from Karl XIII Henrik was supposedly cursed with only having one child surviving to adulthood. This continued until 1921 when a second son was born to the Crown Prince, however his eldest son failed to produce an heir and his second son's descendents died out when Prince Rikard Oskar, then Crown Prince of Sweden died in 2008 without issue. Because of this succession crisis, King Karl XVIII Henrik and the riksdag put a referendum to the people. They decided they wanted to continue the monarchy and voted in favour of succession passing to Princess Kaija Ragnar Hjalmarr Erik of Finland, who was Prince Rikard's best friend and the only available royal of age from the House of Kaikkonen, the same house that the then royal family had descended from in 1810. Princess Kaija became King Hjalmarr III on 15 November 2008 on the death of King Karl XVIII Henrik.
The current monarch of Australia is King Matthew II, who ascended in 2004 following the death of his father King George II.
The current monarch of Finland is King Johann VII Fredrik, who ascended the throne on 30 April 2010 after the bombing of the United Nations building killed her Grandfather, King Magnus II Gustav, her father Crown Prince Ragnar Fredrik and her eldest brother Prince Ragnar Henrik.