At issue was who, the pope or monarchs, had the authority to appoint (invest) local church officials such as bishops of cities and abbots of monasteries. The conflict ended in 1122, when Emperor Henry V and Pope Calixtus II agreed on the Concordat of Worms. It differentiated between the royal and spiritual powers and gave the emperors a limited role in selecting bishops.
The first two US political parties were technically the Federalists and the Anti-Federalists, who were later known as the Democratic and Republican parties.
The People's Party, also known as the Populist Party, was a short-lived political party in the United States established in 1891 during the Populist movement.