Eliffer Gosgorddfawr "of The Great Army" ap Athrwys, King of Ebrauc

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392255904 (February 5, 2023; Anne Brannen, curator)

Please see Darrell Wolcott: Harleian Ms 3859; http://www.ancientwalesstudies.org/id129.html. (Steven Ferry, March 9, 2021.)

Please see Darrell Wolcott: Foundations of 'The Men of the North' - Part 2; http://www.ancientwalesstudies.org/id279.html. (Steven Ferry, July 9, 2021.)

Please see Dr. J White-Phillips and Darrell Wolcott: Bernicia-From Doormat to Dominant in North Britain; http://www.ancientwalesstudies.org/id280.html. (Steven Ferry, July 20, 2021.)

Northern Britain (Ebrauc)

MapThe Roman capital of the North was Eboracum (modern York), which was located in territory that had formerly been under the control of the Brigantes. While the city was founded by Rome, an eponymous Celtic founder figure is included in the list of High Kings. From AD 197, Eboracum became the capital of the province of Britannia Inferior, which covered not only the entire north of Roman Britain up to Hadrian's Wall - essentially the former territory of the Parisi and Brigantes combined - but also a large swathe of the Midlands. In the early fourth century, the province was renamed Britannia Secunda and was reduced in size, roughly from the Humber to the Wall.

===War & Society in Medieval Wales 613-1283=== Author: Sean Davies - 2004, pg. 20
[https://www.google.com/books/edition/War_and_Society_in_Medieval_Wa...]