Baldulph, Balduk, Bladulf, Valence
During Arthur’s siege of York, Baldulph plotted to ambush and slay Arthur, but his plan was foiled by one of his own soldiers – Mauron (Maurin), who was Arthur’s kinsman. Baldulph then disguised himself as a minstrel and was able to sneak into the city to assist his beleaguered brother. Both Saxons were saved by the arrival of Cheldric of Germany.
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138
Roman de Brut | Wace, c. 1155