Hortensia Herrero net worth: Hortensia Herrero is a Spanish businesswoman who has a net worth of $2.6 billion. Hortensia Herrero is a 28% owner of the Spanish supermarket chain Mercadona. Hortensia helped built the supermarket company with her billionaire husband Juan Roig. Hortensia Herrero is the company's Vice President. She studied economics at the University of Valencia. Mercadona does $24 billion in revenue. It has about 1,500 locations in Spain. Herrero has helped restore the historic city of Valencia, Spain, putting more than $10 million into it. Hortensia Herrero lives in Valencia, Spain and is married with four children.