When 94-year-old Italian millionaire Maria Assunta died in 2011, she left her entire $15 million fortune to her cat Tommasino, making him the wealthiest feline in the world. Although Italian law prohibits Tommasino from inheriting the money directly, Assunta’s will also calls the fortune to be donated to a “worthy animal association,” which is presumably a better use of $15 million than what most of these other animals are spending their riches on.