St. Casilda of Toledo (950 A.D. – 105 A.D.):
According to her legend, St. Casilda, a daughter of a Muslim king of Toledo (called Almacrin or Almamun), showed special kindness to Christian prisoners by carrying bread hidden in her clothes to feed them.
She was raised a Muslim, but when she became ill as a young woman, she refused help from the local Arab doctors and traveled to northern Iberia to partake of the healing waters of the shrine of San Vicente, near Buezo, close to Briviesca. When she was cured, she was baptized at Burgos (where she was later venerated) and lived a life of solitude and penance not far from the miraculous spring. It is said that she lived to be 100 years old.