Moncontour is a commune in the Côtes-d'Armor department of Brittany in northwestern France. The 18th-century French economist Joachim F…Moncontour is a commune in the Côtes-d'Armor department of Brittany in northwestern France. The 18th-century French economist Joachim Faiguet de Villeneuve was born in Moncontour. It is one of Les Plus Beaux Villages de France.