A man named Beornwulf is mentioned as having witnessed a charter of King Coenwulf in 812 and another of King Ceolwulf in 823, but his position on each of these charters suggests that he was not of an exceptionally high rank.
Un home chamado Beornwulf aparece mencionado como testemuña nun diploma do rei Coenwulf de Mercia en 812 e noutro de Ceolwulf en 823, pero a súa posición nestes diplomas suxire que non era dun rango especialmente elevado.