Alruna von Cham was a Bavarian Benedictine nun who lived from approximately 990 until 1045. Born into the noble family of Cham, she lived as a recluse near the Niederaltaich monastery following the death of her husband, Mazelin of Portis. Known for her charitable spirit and spiritual guidance, she earned the title "Mother of the Poor" through her devotion to those in need. She passed away in Niederaltaich on January 27 after suffering from a severe fever.