Sextius Alexandre François de Miollis' (Aix, September 18, 1759 – Aix, June 18, 1828) was a French military officer serving in the American Revolutionary War, the French Revolutionary Wars, and the Napoleonic Wars.
His father was a councilor of the provincial Parlement of Aix who was ennobled in 1770 for his services at the legal courts there.
He entered service at age 17 in the infantry regiment of the Soissonnais. In the last campaigns of the American Revolution, he served as sub-lieutenant under General Rochambeau. His face was disfigured in battle at the siege of Yorktown and he returned to France as a captain.
He headed the First National Battalion of volunteers of Bouches-du-Rhône. In the French Revolutionary Wars, he demonstrated skill and bravery often, becoming a brigadier general in 1796.
Under Napoleon, he was deployed to Italy, taking part in the siege of Mantua. Commanding a division after the Treaty of Campo Formio, he was put in charge of the occupation of Tuscany.
Under General André Masséna, he took part in the 1799 defense of Genoa. He became the governor of Belle-Île-en-Mer in 1803, then of Mantua in 1806. At Mantua, he honored Virgil with a monument. With some pomp and circumstance, he transferred the ashes of Ariosto to the University of Ferrara where they received the omage due to them. At Verona, he restored the Arena, one of the most interesting of Roman antiquities.