Maria Teresa, the youngest of the Mirabal sisters, was born on October 15, 1936. She attended Inmaculada Concepción after the rest of her sisters. In 1954 she graduated from the Liceo de San Francisco de Macorís in Mathematics, and then went to the University of Santo Domingo to study math. On February 14, 1958, she married the engineer Leandro Guzmán, and on February 17, 1959, gave birth to their daughter Jacqueline. She was the youngest sister of the family and goes by María Teresa or Mate, In her younger years looks up to Minerva and spends most of her time initially thinking about clothes and boys. She joins the resistance movement when she falls in love with Leandro Guzman. Mate then becomes “Butterfly #2” and helps stockpile weapons.