Catalina Erauso y Pérez Galarraga (San Sebastián, Guipúzcoa, España, 1585?- Cuitlaxtla, cerca de Orizaba, Nueva España, 1650), popularmente conocida como la Monja Alférez, fue una militar y monja y uno de los personajes más legendarios y controvertidos del Siglo de Oro español.
Catalina de Erauso 1592- 1650 | Born to a noble family in Spain, Catalina de Erauso was expected to become a nun from the time she was old enough to walk. She was raised in a nunnery and was severely displeased with the life style. At the age of fifteen, she was beaten as a punishment, something that ended up being the final straw for Catalina. She escaped the convent, cut her hair and put on men’s clothing. She was ready to make her own adventure in the world.