Gaspard III de Coligny, duc de Châtillon, (1584 to 1646) was a French Huguenot, who served under Louis XIII, and was appointed Marshal of France in 1622. He was described as "a mediocre general, but absolutely loyal".[1]
Châtillon was born 26 July 1584, in Montpellier, son of François de Coligny (1557–1591) and his wife Marguerite d'Ailly. He was a grandson of the Huguenot leader Admiral Gaspard de Coligny.
On 13 August 1615, he married Anne de Polignac (1598–1651), and they had 4 children. Maurice (1618–1644), Gaspard IV de Coligny (1620–1649), Henriette de Coligny (1618–1673), and Anne, (1624–1680).
He served during the Franco-Spanish War (1635–1659) at Les Avins in 1635, and commanded the Army of Champagne at the Battle of La Marfée on 6 July 1641, where he was defeated. He retired to Châtillon, where he died 4 January 1646.