Northþrenndum
Northþrenndum was an Old English term referring to a group of people or a region in what is now Scotland. The name appears in historical texts, most notably in Bede's Ecclesiastical History of the English People, written in the early 8th century. Bede mentions the Northþrenndum in relation to the evangelization of the Picts and the establishment of the Christian church in the region.
The exact geographical location and the precise identity of the Northþrenndum remain subjects of scholarly debate.