Earl Cadoc of Cornwall

Cadoc (1031 -) was the Earl of Cornwall from at least before 1066, serving under King Harold II of England, going on to become advisor. He was the son of Cador mab Riwal. He had two daughters, Rioantdrec and Enoguen, by his wife, Marguarite. He was an honest and humble individual, was gregarious and zealous, and was good with money. In September of 1066, while King Harald IV of Norway was invading England, he began to focus on grooming a male heir.
 * This article is based on a real historical figure. His Wikipedia article can be found here