#4 Sonia Gandhi
Net Worth: $2-19 billion
Position: President, Indian National Congress (political party)
Gandhi is originally from Italy. She is the widow of Rajiv Gandhi, the assassinated former prime minister. As leader of the Congress party, Gandhi played a key role in reviving the party’s fortune and power.
Source: World’s Luxury Guide (based on OpenSecrets.org, Forbes.com, Bloomberg.com, Wikipedia.org, Guardian.co.uk)