Eva Gonda de Rivera  Eva Gonda de Rivera is a Mexican billionaire heiress and businesswoman. Along with her daughters, she owns a major stake in the FEMSA beverage corporation, which operates convenience stores and bottling plants across Mexico and Latin America. Rivera was married to Eugenio Garza Lagüera until his death in 2008. Her net worth in 2019, according to Forbes magazine, is $6.2 billion. Born in Monterrey, Nuevo León, Rivera earned a bachelor's degree from the Monterrey Institute of Technology, where she met Garza Lagüera. They were married in 1957. Rivera lives in Monterrey. She has four daughters; Eva Maria Garza Lagüera Gonda is married to the current CEO of FEMSA, José Antonio Fernández Carbajal.