Saint Ida of Herzfeld (c. 770 – 4 September 825) was the widow of a Saxon duke who devoted her life to the poor following the death of her husband in 811. While there is disagreement as to her precise parentage, it is generally agreed that she was closely related to the Carolingians. The daughter of a count, Ida received her education at the court of Charlemagne, who gave her in marriage...