Duke of Royan from 1733 to 1745
His Highness Prince Augustin Charles Paul Louis was born on May 2, 1686, he is the only child of Paul-Augustin (1635-1688), Lord of Hanches, and Marie-Adélaïde de Havenant (1651-1699), nicknamed the "Countess of Olonne".
Lord of Hanches at the age of two, he married Anne-Marie Lassère on November 3, 1711. The couple gave birth to two sons, Prince Louis and Prince Augustin (1716-1759), heir apparent to Royan from 1745 to 1757.
The Prince died on June 15, 1745 at the age of 59.