Saint Mildrith, also Mildthryth, Mildryth and Mildred, (Old English: Mildþryð) (born c. 660, died after 732), was a 7th and 8th-century Anglo-Saxon abbess of the Abbey at Minster-in-Thanet, Kent. She was declared a saint after her death, and later her remains were moved to Canterbury.
If I named my daughter Mildred, I would totally try to get her a decoration of some kind with her name written out this way in the old Anglo-Saxon letters—really cool, and would teach her the history of her name and how old it is.
Mildritha is another form. Source: https://www.medievalists.net/2023/11/old-english-girls-names/