Prince Wenzeslaus of Liechtenstein (Getty Images)

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Though his dominion is only a little larger than the Bronx, Prince Wenzeslaus parties with the best of them - he's dated various supermodels, including Victoria's Secret beauty Adrianna Lima, and appears regularly in the gossip columns, where he's referred to as "Vince the Prince." Prince Wenzeslaus is the son of HSH Prince Philip Erasmus of Liechtenstein and Isabelle de l'Arbre de Malander and has two brothers, Alexander and the more unusually named Rudolf, along with whom he's due to inherit a sizable chunk of his family's $4 billion fortune. Let's just hope he doesn't inherit his parents' love of weird baby names....