The new Kaiser Stefan came to the throne through a palace coup. The outrage following the Treaty of Rome (September 1902), ending the war with New Swiss and Oranje and ceding Sud-West Afrika to Oranje, allowed the Archduke to act.
Emperor Maximilian was overthrown and forced to abdicate in his and heir's name. Both were forced into exile, together with other senior male members of the Habsburg dynasty.
The new Kaiser is 32 years ago and strong willed (read - stubborn like a donkey).
He was the nephew of the previous Emperor - in the line to the throne behind his older brothers Franz Ferdinand and Otto (and their sons).
Marital status - married to Yelena Vladimiryevna Romanova, with daughters Olga +6 other names - born mid 1904, and Elizabeth (8 other names) - born late December 1905