© RMN-Grand Palais (Domaine de Chantilly) / René-Gabriel Ojéda

Battle of Marignan, 1515, by the Maître de la Ratière. Condé Museum in Chantilly, misc. V, 347

In 1515, in Marignan, the role of the 300-unit-strong French artillery was decisive. Its fire shattered the Swiss infantry and opened holes into which men-at-arms on horseback could rush. This enabled the Gendarmerie to lead many charges and break down the Swiss infantry. As such, the Gendarmerie was no longer alone in determining the outcome of battles.