Renaud de Courtenay, Lord of Courtenay; accompanied Louis VII of France on the Second Crusade but quarreled with him so that Louis seized his French possessions and bestowed them, with Renaud's daughter (Elizabeth) in marriage, on his (Louis') own younger brother Pierre; Renaud subsequently threw in his lot with the English kings and was granted the Lordship of Sutton (now Sutton Courtenay), on the Berks-Oxon borders by Henry II 1161; accompanied Henry II to Wexford in the Irish expedition of 1172; married 1st Hedwige (living 1148-58), sister of Guy du Donjon; married 2nd Maud, Dame du Sap (dsp 1224), daughter of Robert Fitz Roy (illegitimate son of Henry I of England) by his wife Maud d'Avranches. [Burke's Peerage]
Note: I consider there to be two Renaud de Courtenay's: Renaud I married Hedwige du Donjon and his son, Renaud II married 1st Hawise Deincourt and 2nd Maud du Sap (dsp 1224).
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of Sutton, Berkshire, England; Sire de Courtenay; exiled 1150. [Roderick W. Stuart, Royalty for Commoners, 3rd ed., Genealogical Publishing Company, Baltimore MD, 1998]
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The story is told that the great possesions in France of Renaud de Courtenay (a man of high social rank and described in personal terms as in effect a glorified bandit) were seized abt 1150 by King Louis VII who granted them to his own youngest brother, Pierre (ancestor of the French Courtenays), with Renaud's daughter, Elizabeth, in marriage, and that Renaud then appeared in England as a minor functionary of the English Court with a small manor and another family. [Ancestral Roots, Frederick Weis, line 138]
Ancestral Roots also discounts Renaud II being the son of Milo (ie. Renaud I and Renaud II in my genalogy, which AR seems to consider the same person) because of dates and social standings, but does not seem to address the possibility of a Reginald [d. 1194 - line 138-25), son of Renaud II (d. 1190 - line 138-24), son of Renaud I (d. 1161 - line 107-24), son of Milo [d. 1127 - line 107-23).
Since according to Burke, Elizabeth's marriage was 1150, Renaud lost his French lands and went to England on or about 1150. His children were born in France, while he still had possession of his French estates.