Porte d'Aix (also known as the Porte Royale) is a triumphal arch in Marseille, in the south of France, marking the old entry point to the city on the road from Aix-en-Provence. The classical design by Michel-Robert Penchaud was inspired by the triumphal arches of the Roman Empire. The Porte d’Aix was initially conceived in 1784 to honour Louis XIV and to commemorate the Peace of Paris (1783) that ended the American war of independence.