 Complete the following phrase:  From a noble family in Saint Malo, Magon became a garde marine in 1777. His father, the governor of the Mascarene Islands, died in 1778 and left his son his estate of Médine on Mauritius, from which Magon derived his full name. He fought at Ushant in 1778 on the ship of the line Bretagne before participating in the English Channel campaign on the Saint Esprit. Rising to enseigne de vaisseau in 1780, he served in the Antilles, on the Solitaire, in the comte de Guichens squadron. He fought in three battles against Rodneys fleet off Dominica before serving in de Grasses squadron on the Caton, fighting at 