Richardis was a 9th-century Carolingian empress and the wife of Charles the Fat. Born in Alsace around 840, she was crowned in Rome in 881. Following a childless marriage and subsequent accusations of adultery by her husband, she was eventually repudiated. She later became the first abbess of the monastery she founded at Andlau. Recognized for her religious devotion, she is remembered as a saint in the Catholic, Anglican, and Orthodox traditions.