Châteaux of the 18th century
- XII–XVIII
Château de Marçay
Chouppes · Vienne — France — XII–XVIII
Château de Marçay is a château at Chouppes, Vienne, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 12th, 14th, 15th, 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Marcellus
Marcellus · Lot-et-Garonne — France — XVIII
Château de Marcellus is a château at Marcellus, Lot-et-Garonne, in the Nouvelle-Aquitaine region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVIII
Château de Marcheval
Millançay · Loir-et-Cher — France — XVIII
Château de Marcheval is a château at Millançay, Loir-et-Cher, in the Centre-Val de Loire region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVII–XVIII
Château de Marcillac
Lendou-en-Quercy · Lot — France — XVII–XVIII
Château de Marcillac is a château at Lendou-en-Quercy, Lot, in the Occitanie region of France. The recorded building campaigns date from the 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Marcilly
Cervon · Nièvre — France — XV–XX
Château de Marcilly is a château at Cervon, Nièvre, in the Bourgogne-Franche-Comté region of France. The recorded building campaigns date from the 15th, 18th, 19th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château de Marcq dit « château Mercier »
Marcq · Ardennes — France — XVIII–XIX
Château de Marcq dit "château Mercier" is a château at Marcq, Ardennes, in the Grand Est region of France. The recorded building campaigns date from the 18th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château de Mardigny
Lorry-Mardigny · Moselle — France — XVI–XIX
Château de Mardigny is a château at Lorry-Mardigny, Moselle, in the Grand Est region of France. The recorded building campaigns date from the 16th, 17th, 18th and 19th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVIII–XX
Château de Mareilles
Le Vigan · Gard — France — XVIII–XX
Château de Mareilles is a château at Le Vigan, Gard, in the Occitanie region of France. The recorded building campaigns date from the 18th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château de Mareuil-sur-Ay
Mareuil-sur-Ay · Marne — France — XVIII–XIX
Château de Mareuil-sur-Ay is a château at Mareuil-sur-Ay, Marne, in the Grand Est region of France. The recorded building campaigns date from the 18th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Marieux
Marieux · Somme — France — XVIII
Château de Marieux is a château at Marieux, Somme, in the Hauts-de-France region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XIV–XVIII
Château de Marigna
Marigna-sur-Valouse · Jura — France — XIV–XVIII
Château de Marigna is a château at Marigna-sur-Valouse, Jura, in the Bourgogne-Franche-Comté region of France. The recorded building campaigns date from the 14th, 16th, 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVII–XVIII
Château de Marignan
Bars · Gers — France — XVII–XVIII
Château de Marignan is a château at Bars, Gers, in the Occitanie region of France. The recorded building campaigns date from the 17th and 18th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château de Marigny-en-Orxois
Marigny-en-Orxois · Aisne — France — XVIII
Château de Marigny-en-Orxois is a château at Marigny-en-Orxois, Aisne, in the Hauts-de-France region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Marracq
Bayonne · Pyrénées-Atlantiques — France — XVIII
Château de Marracq is a château at Bayonne, Pyrénées-Atlantiques, in the Nouvelle-Aquitaine region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XV–XVIII
Château de Marry
Moulins-Engilbert · Nièvre — France — XV–XVIII
Château de Marry is a château at Moulins-Engilbert, Nièvre, in the Bourgogne-Franche-Comté region of France. The recorded building campaigns date from the 15th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVIII
Château de Marsan
Marsan · Gers — France — XVIII
Château de Marsan is a château at Marsan, Gers, in the Occitanie region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVII–XVIII
Château de Marsay
Missé · Deux-Sèvres — France — XVII–XVIII
Château de Marsay is a château at Missé, Deux-Sèvres, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Marsillargues
Marsillargues · Hérault — France — XIV–XVIII
Château de Marsillargues is a château at Marsillargues, Hérault, in the Occitanie region of France. The recorded building campaigns date from the 14th, 16th, 17th and 18th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Martainville
Martainville-Epreville · Seine-Maritime — France — XV–XVIII
Château de Martainville is a château at Martainville-Epreville, Seine-Maritime, in the Normandie region of France. The recorded building campaigns date from the 15th, 16th, 17th and 18th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Martigné
Avessé · Sarthe — France — XVIII
Château de Martigné is a château at Avessé, Sarthe, in the Pays de la Loire region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Martinas
Monistrol-sur-Loire · Haute-Loire — France — XVIII–XIX
Château de Martinas is a château at Monistrol-sur-Loire, Haute-Loire, in the Auvergne-Rhône-Alpes region of France. The recorded building campaigns date from the 18th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVIII
Château de Mas Blanc
Mas-Blanc-des-Alpilles · Bouches-du-Rhône — France — XVIII
Château de Mas Blanc is a château at Mas-Blanc-des-Alpilles, Bouches-du-Rhône, in the Provence-Alpes-Côte d'Azur region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- XVI–XVIII
Château de Mascaraàs
Mascaraàs-Haron · Pyrénées-Atlantiques — France — XVI–XVIII
Château de Mascaraàs is a château at Mascaraàs-Haron, Pyrénées-Atlantiques, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 16th, 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Masclat
Masclat · Lot — France — XIII–XVIII
Château de Masclat is a château at Masclat, Lot, in the Occitanie region of France. The recorded building campaigns date from the 13th, 14th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.