 The movement was at its strongest in the 1830s, causing the Carlist Wars, and had a revival following Spain's defeat in the Spanish–American War in 1898, and lasted until the end of the Franco regime in 1975 as a social and political force

Charles Floyd (1782–1804) was the only casualty in the Lewis and Clark Expedition.Charles DeRudio (1832–1910) was an Italian aristocrat, would-be assassin of Napoleon III, and later a career U.S. Army officer who fought in the 7th U.S. Cavalry at the Battle of the Little Bighorn.Charles Albert Varnum (1849–1936) was the commander of the scouts in the Little Bighorn Campaign and received the Medal of Honor for his actions in a conflict following the Battle of Wounded Knee.