Note 19 — Chapter II · ANGLO-SAXON FORTIFICATIONS
Reading edition
Nennius says that Ida “unxit (read cinxit) Dynguayrdi Guerth-Berneich”=a strength or fort of Bernicia. Mon. Hist. Brit., 75. Elsewhere he calls Bamborough Dinguo Aroy. It is quite possible that there might have been a Keltic din in a place so well fitted for one as Bamborough.