Franz Josef was the long-lived head of the House of Hapsburg, whose reign saw the Austrian Empire fall from one of the pre-eminent European Great Powers into a fracturing multi-ethnic cockpit.
His brother Maximilian was a liberal guy, who may have been able to use liberal solutions to solve Austria's myriad problems, and keep Austria from slipping into its OTL fate. So in 1849, after putting down the '48 Revolutionaries, Franz Josef falls off his horse and dies. His brother, Maximilian, is now the Austrian Kaiser.
Lets say that Maximilian lives as long as his older brother. When Maximilian dies in 1918, what does he leave behind?