Amancio Ortega, 3 on the Forbes billionaires list, is worth $57 billion. This Spanish beauty is the daughter of Amancio Ortega, the founder of the global fashion firm Inditex, which owns the Zara retail chain. Rumor has it that Marta Ortega-Perez, 30, is being groomed by her father to one day take over the international fashion company. But it hasn't been merely handed to her — Marta started at the bottom where she stocked shelves and dealt with customers. She is also an avid equestrian and married Spanish equestrian star Sergio Alvarez Moya in 2012.