In 1800, "Minotaur" was Lord Keith's flagship at the Siege of Genoa and the following year Louis commanded her at the invasion of Egypt. Following the Peace of Amiens, Louis briefly took command of HMS "Conqueror". Less than a year later he was promoted to rear-admiral, raised his flag in the fourth rate HMS "Leopard", commanded by Francis Austen, and oversaw 40 small craft seeking to disrupt French invasion preparations at Boulogne.