Monsieur et Madame Denis was created in 1862.
"monsieur et madame Dupont" is abbreviated as "m. et Mme Dupont"
monsieur et madame
Monsieur S- et Madame V- - 1989 is rated/received certificates of: Belgium:KT
Monsieur et Madame
The cast of Monsieur et Madame font du tandem - 1908 includes: Max Linder
M. et Mme. Dupont
M. et Mme. (monsieur et madame)
The cast of Monsieur et Madame Curie - 1956 includes: Lucien Barjon as Le professeur Henri becquerel Lucien Hubert as Pierre Curie
the adressee is - a man: 'cher monsieur Dupont' or 'cher monsieur' or 'monsieur' (the latter being more distant), - a woman: 'chère madame Dupont' or 'chère madame' or 'madame' (same remark), - a couple: chers monsieur et madame Dupont, - you don't know / to whom it may concern': Madame, monsieur, (use both) these terms are to be repeated in the ending (link for related question)
The cast of Le retour de Monsieur et Madame Banaste - 1952 includes: Christian Asse as La narrateur Bob de Kerfeuten as Le patron de Monsieur Banaste Roger de la Calmette as Monsieur Banaste
Monsieur et Madame Smith, and try not to pronounce it Smeese.
monsieur is abbreviated "m." messieurs (the irregular plural form of monsieur) is abbreviated "mm." on a letter or business card: monsieur et madame DUPONT > m. et mme DUPONT - madame > mme, plural: mesdames > mmes - mademoiselle > mlle, plural: mesdemoiselles > mlles