Succes 2012: Simeon Saxe-Coburg-Gotha, Tsar Simeon II or King Simeon II of Bulgaria

Simeon Borisov of Saxe-Coburg and Gotha, Tsar Simeon II or Simeon II of Bulgaria (born 16 June 1937) is an important political and royal figure in Bulgaria. During his reign as the Tsar of Bulgaria from 1943 to 1946 he was a minor, the monarchical authority being exercised over the kingdom on his behalf by a regency. The regents were Simeon's uncle Prince Kiril of Bulgaria, General Nikola Mihov and the prime minister, Bogdan Filov. In 1946 the monarchy was overthrown as a consequence of a greatly manipulated referendum won by the communist republicans. Simeon went into exile. Fifty-five years later, on 6 April 2001, Simeon resumed the role of leader of the nation upon taking office as Prime Minister of the Republic of Bulgaria from July 2001 until August 2005.

As of 2012, Simeon is one of the last living heads of state from the World War II-era, the only living person who has borne the Bulgarian title "Tsar", and one of the few monarchs in history to have become the head of government through democratic elections.

Simeon was born the son of Tsar Boris III and Tsaritsa Giovanna di Savoia and is related to various European royalty, including Queen Elizabeth II, King Albert II of the Belgians and the Kings Victor Emmanuel III of Italy and Umberto II of Italy. Following his birth, Boris III sent an air force officer to the River Jordan to obtain water for Simeon's baptism in the Orthodox faith. He became Tsar on 28 August 1943 on the death of his father, who had just returned to Bulgaria from a meeting with Adolf Hitler. Since Tsar Simeon was only six years old when he ascended the throne, his uncle Prince Kyril of Bulgaria, Prime Minister Bogdan Filov, and Lieutenant-General Nikola Mihailov Mihov of the Bulgarian Army were appointed regents.

On 5 September 1944 the Soviet Union declared war on Bulgaria and three days later the Red Army entered the country without encountering resistance. On the next day, 9 September 1944, Prince Kyril and the other regents were deposed by a Soviet-backed coup and arrested. The three regents, all members of the last three governments, Parliament deputies, heads of the army and eminent journalists were executed by the Communists in February 1945