Beornice

According to the Old English Dictionary:

Beornice

gen. a; dat. um; pl. m. The Bernicians; Bernicii :-- Man gehálgode twegen biscopas on his stal, Bosan to Derum and Eátan to Beornicum two bishops were hallowed in his stead, Bosa over the Deirians and Eata over the Bernicians, Chr. 678; Th. 61, 17, col. 1 : Bd. 3, 24; S. 556, 45. beornice