Franz Joseph of Austria-Hungary
The eldest son of Archduke Charles and Sophia, Franz Joseph was educated as the heir-presumptive of his uncle, Emperor Ferdinand I. After seeing in the Austrian army, he was crowned in 1848. During his initial rule in neo-absolutism, Franz Joseph set out to put his empire in order. Domestically, it was efficient, but it began to be affected by a string of unfortunate outcomes in a number of wars, such as the Crimean War. After several decades of tensions with Prussia and unsatisfactory solutions to quell nationalist tensions, Franz Joseph declared a dual monarchy, which satisfied Hungarians but did nothing for the Slavs. He continued to conduct a peace policy among other countries; however, it was he who issued the ultimatum to Serbia, leading to World War I.
Franz Joseph was able to maintain a slowly and inevitably imploding empire and keep it together, which is no small feat. Though his military ventures could have been more successful, his policies and and character made him a well-respected person in and out of his country.
More of Franz Joseph and his marvelous facial hair.
Archduke Franz Ferdinand
Another member of the Habsburgs who had marvelous facial hair. His assassination started World War I.
Another Habsburg with a great mustache. He was Emperor of Austria-Hungary during World War I.