Louis de La Vergne-Montenard de Tressan or Louis III de La Vergne de Tressan ( - ) was a French cleric of the Roman Catholic Church, Archbishop of Rouen (France) from to .
Biography
He was born in Tressan (France) in . He was the second son of Jérémie de Tressan; from what is considered a very old Languedoc family.
His father, Maréchal de camp of Louis XIV, married Marguerite de Béon (House of Béon-Luxembourg) on . His brother was François de La Vergne, Marquess of Tressan.
Louis de La Vergne de Tressan received a licence in theology from the University of Paris.
He was Count of Lyon and Canon of the Saint John the Baptist Lyon Cathedral, then First Almoner of Philippe I, Duke of Orléans. In this capacity he advocated renewed persecution of Huguenots, which became law under Louis Henri, Duke of Bourbon.
He was selected Bishop of Nantes (France) on , confirmed on and ordained on . He stayed in Nantes from to .
He was selected Metropolitan Archbishop of Rouen on and confirmed on .
He died on in Rouen and was replaced by Nicolas de Saulx de Tavannes (it), Bishop of Châlons-en-Champagne.
His appointed surgeon in Rouen was Claude-Nicolas Le Cat.