Editing Protestant Union (section)

==Timeline==
In 1555, the Peace of Augsburg was signed by [[Charles V, Holy Roman Emperor|Charles V]] and Lutheran princes. This treaty gave Roman Catholic and Lutheran princes the freedom to decide the religion which their respective state would be under, but gave no such protection to Calvinist princes. In 1608, Protestant princes formed the alliance known as Protestant Union. The next year, the Catholic League was created. In 1610, the Union intervened in the [[War of the Jülich Succession]].{{sfn|Anderson|1999|p=82}} In 1618, the [[Thirty Years' War]] began with the outbreak of the [[Bohemian Revolt]]. Frederick V, Elector Palatine, accepted the crown of Bohemia the following year. The Union declared its neutrality in the conflict between Frederick and the Catholic League in the 1620 Treaty of Ulm. The Union dissolved the next year.