The lower orders of society were where Protestantism made its impact in France. However, Calvinism appears to have developed with large support from the nobility. It is believed to have started with Louis Bourbon, Prince of Condé, who while returning home to France from a military campaign, passed through the Republic of Geneva and heard a sermon by a Calvinist preacher. Later, Louis Bourbon would become a major figure among the Huguenots of France. In 1560, Jeanne d'Albret, Queen regnant of Navarre, converted to Calvinism, possibly due to the influence of Theodore de Beze. She later married Antoine de Bourbon, and both she and their son Henry of Navarre would be leaders among the Huguenots.