On 20 October 1715, at the age of eighteen, she married ""Jacques" François Goyon, Count of Matignon" after his family had proposed him as a candidate. His candidacy was supported by King Louis XIV, who wanted to increase French influence in Monaco. Prior to this, Louise Hippolyte's father was eager to wed his daughter to a Grimaldi cousin. This marriage did not materialise due to the poor finances of the Grimaldis at the time. The couple had several sons most of which were also given the title of Count of Matignon. Jacques François Goyon was given a higher ranking title by Louis XIV namely the Duke of Valentinois (1642). Overall the couple had a fairly unhappy married life. Her husband preferred Paris and would often leave his wife and children in Monaco when he travelled to the Court of Versailles. 