The north tower, the Tour Saint-Romain, has the sober simplicity of the cathedral's early Gothic beginnings in the 12th century, while the taller, more elaborate south tower, the Tour de Beurre, is Flamboyant Gothic of the 15th century.
The Tour de Beurre was built by monks and laborers who were fond of butter.
mnli hypothesis: The Tour de Beurre was built by monks and laborers who were fond of butter. premise: The north tower, the Tour Saint-Romain, has the sober simplicity of the cathedral's early Gothic beginnings in the 12th century, while the taller, more elaborate south tower, the Tour de Beurre, is Flamboyant Gothic of the 15th century.