María Pérez (fl.
13th-century), called La Balteira ("the Balteira"), was a Galician trobairitz and soldadeira.
María Pérez was a composer and singer who wrote sacred plainsong, performed in the courts of Europe, and was somewhat of an adventurer.
[1] She was popular at the courts of Ferdinand III of Castile and Alfonso X of Castile, and the latter dedicated a song to her.