The Huguenots are believed to have been concentrated among the population in the southern and western parts of the Kingdom of France. As Huguenots gained influence and more openly displayed their faith, Catholic hostility grew. A series of religious conflicts followed, known as the French Wars of Religion, fought intermittently from 1562 to 1598. The Huguenots were led by Jeanne d'Albret; her son, the future Henry IV (who would later convert to Catholicism in order to become king); and the princes of Condé. The wars ended with the Edict of Nantes, which granted the Huguenots substantial religious, political and military autonomy.