According to The New York Times, Magon de La Villehuchet's older brother Bertrand said his brother was connected to Madoff by Thierry's partner in AIA, Patrick Littaye, another French banker, and that Thierry had not known Madoff personally.
Bloomberg reported Bertrand had invested 20% of his assets in an AIA/Madoff fund and also reported René-Thierry had founded Access in 1994 with Littaye.