Irma Morales Muñoz, best known by her ring name Irma González, is a Mexican retired luchadora (or professional wrestler). During her over forty-year career, from the 1950s to the 1990s, she also competed at various times under the masked characters Flor Negra ("Black Flower"), Rosa Blanca ("White Rose"), La Tirana ("The Tyrant"), La Dama del Enfermero ("The Nurse Lady"), La Enfermera ("The Nurse") and La Novia del Santo ("The Bride of El Santo"). She is one of the pioneers of women's professional wrestling in Mexico, part of the first wave of Mexican women who made their debuts in the early 1950s, at a time where virtually no women's matches were promoted in Mexico. She is a five-time holder of the Mexican National Women's Championship, a two-time winner of the UWA World Women's Championship, and won both a US-based and an Indonesian-based world championship. She and her daughter Irma Aguilar were the first team to win the Mexican National Women's Tag Team Championship when introduced in 1990. In 2020, she was selected as The Greatest Female Wrestler in Lucha Libre History by LuchaWorld.