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Hans-Adam II, Approximate fortune: $ 3.5 billion
Johannes Adam Ferdinand Alois Joseph María Marco de Aviano Pius Von O’Nand Zoe Liechtenstein, who is known as the Prince of Liechtenstein, Duke Troopau, Jagendorff, Kenneth Ritberg, or Han-Adam II, ruled over his country for 21 years without anyone Make him intruders.
