Robert fitzEdith explained

Robert FitzEdith, feudal lord of Okehampton (1093–1172) was an illegitimate son of Henry I of England and Edith Forne, who was a mistress of Henry I.^[1] Compared to many of his illegitimate siblings and half-siblings, not much is known about him. Robert married Matilda d'Avranches,^[2] heiress of the feudal barony of Okehampton, Devon, and widow of William de Courcy. They had one daughter, Maud, who married Renaud, Sire of Courtenay (son of Miles, Sire of Courtenay and Ermengarde of Nevers).^[3] Robert died of natural causes.

Notes and References

1. Book: Fleming, Donald F.. Pope. Janet M.. Henry I and the Anglo-Norman world: studies in memory of C. Warren Hollister. 2007. Boydell Press. Suffolk, UK. 978-1-84383-293-5. 35–36.
2. Book: Harper-Bill, Christopher. Anglo-Norman Studies XVIII: Proceedings of the Battle Conference 1995. 1996. Boydell & Brewer Ltd. Suffolk, UK. 978-0-85115-666-8. 43.
3. Book: Burke, Sir Bernard. A genealogical history of the dormant, abeyant, forfeited, and extinct peerages of the British empire. 1866. Harrison. 140.