Move over, Jay Z and Beyonce.
Amancio Ortega Gaona, the co-founder of Spanish retail firm Inditex, and his second wife, Flora Perez, earned the No. 2 slot with a combined net worth of $70.7 billion. The Oracle of Omaha, Warren Buffett, and his wife, Astrid Menks, came in at No. 3. Their net worth totaled $65 billion, according to the report.
Bill and Melinda Gates joined with Buffett in 2010 to form the Giving Pledge, a campaign to encourage the world's wealthiest people to commit most of their riches to philanthropy. Since it was originated, more than 100 pledges have been made.