Boris III (Bulgarian: Борѝс III ; Boris Treti; 30 January [O.S. 18 January] 1894 – 28 August 1943), originally Boris Klemens Robert Maria Pius Ludwig Stanislaus Xaver (Boris Clement Robert Mary Pius Louis Stanislaus Xavier), was the Tsar of the Tsardom of Bulgaria from 1918 until his death in 1943.
The eldest son of Ferdinand I, Boris assumed the throne upon the abdication of his father in the wake of Bulgaria's defeat in World War I. Under the 1919 Treaty of Neuilly, Bulgaria was forced to, amongst other things, cede various territories, pay crippling war reparations, and greatly reduce the size of its military. That same year, Aleksandar Stamboliyski of the agrarian Bulgarian Agrarian National Union became prime minister. After Stamboliyski was overthrown in a coup in 1923, Boris recognized the new government of Aleksandar Tsankov, who harshly suppressed the Bulgarian Communist Party and led the nation through a brief border war with Greece. Tsankov was removed from power in 1926, and a series of prime ministers followed until 1934, when the corporatist Zveno (Bulgarian: Звено) movement staged a coup and outlawed all political parties. Boris opposed the Zveno government and overthrew them in 1935, eventually installing Georgi Kyoseivanov as prime minister. For the remainder of his reign, Boris would rule as a de facto absolute monarch, with his prime ministers largely submitting to his will. In August 1943, shortly after returning from a visit to Germany, Boris died at the age of 49. His six-year-old son, Simeon II, succeeded him as tsar.
Alternate versions of Boris III of Bulgaria have been discovered throughout the multiverse:
- Boris III of Bulgaria (Alexander the Liberator)
- Boris III of Bulgaria (Hitler's Win)
- Boris III of Bulgaria (How many Sixes does Adolf Nazi have to Roll?)
- Boris III of Bulgaria (The Last Age of Empires)