Silvio Berlusconi (1936) is an Italian media tycoon and politician who served as Prime Minister of Italy in four governments. Berlusconi is the controlling shareholder of Mediaset and has owned the Italian football club A.C. Milan since 1986. He is nicknamed Il Cavaliere (The Knight) for his Order of Merit for Labour, although he voluntarily resigned from this order in March 2014. In 2016, Forbes magazine ranked him as the 188th richest man in the world with a net worth of US$7.1 billion. In 2009, Forbes ranked him 12th in the List of The World's Most Powerful People due to his domination in Italian politics.