Wynn, however, has not renounced his American citizenship and remains both a U.S. citizen and taxpayer, said a statement issued by Wynn Resorts spokeswoman Jennifer Dunne.
Wynn Resorts didn't immediately provide details on the nature of the joint venture. "His Monegasque citizenship was pursued as a result of this appointment," to the board of the joint venture, said the statement from Dunne.
In August it was announced that Qatar and Monaco had formed a joint venture international company, Monaco QD International Hotels and Resorts Management, to acquire and manage hotels and resorts in Europe, the Middle East and North America. It was unknown late Monday if that's the company Wynn has agreed to be a director of.