Guérech Canhiart Bishop Nantes was appointed Bishop Nantes.
Around 1020 [his father] Alan Canhiart Count Cornouaille succeeded Count Cornouaille.
Around 1026 [his father] Alan Canhiart Count Cornouaille and [his step-mother] Judith Poher Countess Cornouaille and Nantes were married. She by marriage Countess Cornouaille. She the daughter of Judicaël Poher I Duke Brittany. He the son of Benoît Canhiart Bishop Cornouaille and Guigoëdon Vannes (age 46).
In 1030 Guérech Canhiart Bishop Nantes was born to Alan Canhiart Count Cornouaille.
In 1058 [his father] Alan Canhiart Count Cornouaille died. In 1058 His son [his half-brother] Hoël Canhiart II Duke Brittany (age 27) succeeded V Count Cornouaille.
In 1079 Guérech Canhiart Bishop Nantes (age 49) died.
GrandFather: Benoît Canhiart Bishop Cornouaille
Father: Alan Canhiart Count Cornouaille
Great x 1 Grandfather: Orscand II "Le Grand" Vannes
GrandMother: Guigoëdon Vannes