This may be big. While digging on Ubisoft and the Guillermot brothers, I found Ubisoft and one of the brothers' other ventures Gameloft experienced aggressive take over attempts by Vivendi Universal. Gameloft takeover was successful but Ubisoft fended them off this year. Vivendi largest shareholder was Edgar Bronfman Jr who is Clare Bronfman's half brother.
Vivendi is connected with a fuck ton of corporations and stems from a water company called Compagnie Generale des Eaux, founded by Napoleon III in 1853.