Joan of Arc was a French peasant who said she was told by angels and saints to aid the French in their Hundred Years' War triumph. She assisted in the defeat of England on multiple occasions, but was arrested and killed for heresy. She has been recognized as a national hero in France since 1825. In 1429, when she was just 19 years old, Joan led French forces at the battle of Orléans where they defeated the English. Two years later, she helped force the surrender of Charles VII at Tours. In between these victories, she suffered two serious defeats: first at Domremy where she was captured by the English, and later at Verneuil where she was injured. But each time out she returned home stronger than before. By the time she died at the age of 30, she had won over France thanks to her courage and her will power. She has been called "The Courageous" because of her many victories over the English troops. After her death, it was discovered that she had diagnosed diseases such as leprosy, tuberculosis, and malaria. Today, scientists believe that she may have suffered from chronic fatigue syndrome or CFIS, which is known to affect women who participated in Richard III of England's wars.