Legenday? Sequel to I Am Legend?
I'm thinking this is "O rel lana" which clearly means (in Welsh or Breton) "From Lana rel" ~ odds are good he was as tall and blue eyed as any other Northern European.
Recall from your French history that much of Brittany was conquered by the Normans back in Viking times.
Of course the Bretons were already pretty much more like the Northern Europeans (Irish, Scots, Welsh, Cornish, Manx, etc.) than Souvrners or North Africans. They used to go down to Spain during the Reconquista and vie for fame and fortune.
I'd be careful with the translations that give you a Heavy Mounted Knight as being anything other than a blue eyed blond (or redhead with green eyes) and shorter than an Indian except for a Mohican or Mohawk back in the 1500s.
Not all Spaniards in that time looked all that Spanish!
That "Lana Rel" part, would be "wool kingdom", "sheep country" ~ maybe even something in Basque, but I don't have a basque translator handy.