Holden, Holdyne, Howeldin
One of Arthur’s nobles, to whom Arthur gave either Flanders (in Geoffrey of Monmouth) or Boulogne (in Wace).
Holdin assisted Arthur in the Roman war. He led a company at the Battle of Soissons, where he and King Alifatima of Spain mortally wounded each other. Arthur had him buried in his city of Thérouanne or Tervanna.
In the Prose Brut, he is Arthur’s chamberlain. Thomas Bek calls him the “King of the Ruteni”.
Sources
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138
Roman de Brut | Wace, c. 1155
Prose Brut | Late 13th century to late 15th century
Thomas Castleford’s Chronicle | Thomas Bek of Castleford, 1327