[1] Guihomar is said to be the son of a man named Ehuarn.
[4] A charter of the Cartulary of Saint-Georges de Rennes also mentions a Guihomar, son of Alan, himself named son of Guihomar in another charter in the same cartulary.
[6] Guihomar's death is mentioned in the Chronicon Britannicum.
[7] Source:[8] Guihomar II married Orven of Cornouaille.
They may have had two children: Harvey also had an illegitimate son with an unknown woman: Guihomar III of Léon may have inspired Guigemar, the hero of the Lai Guigemar by Marie de France: the story takes place in Brittany at the time of Hoilas (maybe Duke Hoël II); one of Hoilas' barons, Lord of Liun (Léon) has a daughter, Noguent,[11] and a son, Guigemar (Guihomar).