Daughter of Silvio Berlusconi, Italy's billionaire former prime minister, Berlusconi, 40, holds several posts in her father's media empire. She is chairman of Italy's largest magazine publisher, Mondadori, and deputy chairman of the family's investment arm, Fininvest, the media holding company her father founded and built. Though scandal has stalked the Berlusconis (her father was acquitted in 2004 of bribing a judge), the family fortune remains intact. It is said that Marina stands to inherit a fortune; her father is worth $12 billion.   (born September 29, 1936) is an Italian politician, entrepreneur, and media proprietor. ...