​From Wikipedia, the free encyclopedia Margarita Isabel is a Mexican film and television actress. Born as Margarita Isabel Morales y González, she is a multiple Ariel Award-winning actress. Five times nominated, she has won three Silver Ariel awards: in 1992, 1995 and 1996. Her son, Mario Iván Martínez (b. February 3, 1955, Mexico City), is a Mexican tenor and actor. Description above from the Wikipedia Margarita Isabel, licensed under CC-BY-SA, full list of contributors on Wikipedia.