Ælfthryth is an Old English feminine given name, the variant of Ælfþryð (see Elfreda). The root of the name lies in the elements ælf "elf" and þryþ "strength", combining to mean "elf-strength". The original form Ælfþryð was commonly borne among Anglo-Saxon nobility during the early medieval period. Etymology and Historical Context Ælfþryð is a compound of the Old English words ælf (elf) and þryð (strength). The name reflects the belief in elf-like supernatural beings and the cultural importance of personal strength. This naming tradition follows typical Anglo-Saxon onomastic patterns, where names often combined two heroic elements. The name was recorded in multiple historical figures, including Ælfthryth, the mother of King Æðelræd the Unready. Others include Saint Ælfthryth of Crowland (died c. 795), and Ælfthryth, Countess of Flanders, daughter of King Alfred the Great (died 929). The name fell out of common use after the Norman Conquest of 1066, as Norman names became dominant in England. Later Revival and Related Forms Ælfthryth was revived in the 19th century in both England and Germany, alongside other forms such as Elfrida, Elfrieda, and Frieda. The name Alfreda is sometimes confused with Ælfthryth but actually derives from different Old English elements (ælf "elf" + ræd "counsel"). Related German forms include Elfriede and Frieda, as well as diminutives like Friedel or Friedl. Notable Bearers In the medieval period, the name Ælfthryth was borne by: Saint Ælfflæd of Whitby (daughter of King Oswiu), though her name is often confused; Saint Ælfthryth of Crowland (died c. 795); Ælfthryth, wife of King Coenwulf of Mercia (fl. 810s); and Elftrude, daughter of Adele of Vermandois. These examples show the name's use among aristocracy and saints. Meaning: "elf-strength" Origin: Anglo-Saxon (Old English) Type: Feminine given name Usage regions: England (early medieval), Germany (19th-century revival) and Scandinavia