When the Campbell family replaced the Hertel de Rouville family, the mountain took up the name Mont Beloeil, after the nearby municipality of Beloeil, on the other side of the Richelieu River. However, the name Mont Saint-Hilaire, after the parish of Mont-Saint-Hilaire established at the foot of the mountain, became prevalent by the early twentieth century. Even so, quarrels between inhabitants of Beloeil and Mont-Saint-Hilaire, both near the mountain, as to which the mountain should be named after lasted well into the twentieth century, with the town newspapers of Beloeil attempting to resurrect the debate as late as 1986.