- Jane of Aza
- Joan of Aza
- Joanna of Aza
Born to the Castilian nobility, the daughter of Felix de Caleruega, constable of Castile. Lay woman noted for her physical and spiritual beauty. Married to Felix de Guzman, governor of Calaruega, Burgos, Spain c.1165. Mother of four. Her oldest son, Venerable Anthony, became a priest, the middle son was Blessed Manés, and the youngest was Saint Dominic de Guzman. When pregnant with Dominic, she had a vision that her unborn child was a dog who would set the world on fire with a torch it carried in its mouth; a dog bearing a torch in its mouth became a symbol for the Dominicans. Popular devotion to Joan sprang up almost immediately upon her death.
- “Blessed Juana de Aza“. CatholicSaints.Info. 8 August 2016. Web. 22 October 2016. <>