I'm seeking information about the De Vivefoy/De Vivefay family who fled France around the time of the French Revolution. Compte-Complesa (Francois?) De Vivefoy held an inherited 'seat' in the Rouen region. The Compte's daughter, Charlotte Antoinette Hortense, married William WYATT (not sure where). After her father died and things settled in France (post Napoleonic War), she returned to claim the family's inheritance, taking the title Comptesse.
William WYATT was living with his wife in Rouen in 1819 and died in Versailles in 1830. The Comptesse, holding higher station, hyphenated her name - maybe after her hsuband died. Their son, Alexander, my 2nd great grandfather, migrated to NSW, Australia, retaining only WYATT as his surname. However, I believe siblings who remained in France may have retained their mother's surname separately or hyphenated. They may also have altered WYATT to be more French (Eg. Wyatte, Wyate, Wyote...)
If anyone has any information to offer about this family's French ancestry and/or descendants, please let me know.