The Navy was only able to draw significant public attention and funds during the three short periods it was actively supported by a member of the Imperial Family. The Archdukes Friedrich (1821–1847), Ferdinand Maximilian (1832–1867), and Franz Ferdinand (1863–1914), each with a keen private interest in the fleet, held senior naval ranks and were energetic campaigners for naval matters. However, none lasted long, as Archduke Friedrich died early, Ferdinand Maximilian left Austria to become Emperor of Mexico and Franz Ferdinand was assassinated before he acceeded the throne.