After the Battle of Waterloo and the final defeat of Napoleon in 1815, he was made a peer of France and received the title of Vicomte de Montmorency-Laval.
He was made a peer of France. This was after the Battle of Waterloo. This was after the final defeat of Napoleon in 1815. He received the title of Vicomte de Montmorency-Laval. This was after the Battle of Waterloo. This was after the final defeat of Napoleon in 1815.