Bediers, Bediver, Bedoier, Bedoiiers, Beduiers, Bedyers, Bedyver
A constable.
Among Arthur’s knights in the list Chrétien de Troyes begins in line 1691 of Erec and Enide.
Chrétien tells us that Bedoiier (spelled with two “i’s”, at least in D.D.R. Owen’s translation) was expert at chess and backgammon.
Source
Erec | Chrétien de Troyes, late 12th century