John Calvin and the Catholic Church had some similar, but different beliefs.
Differences:
Calvinism: There was belief of predestination. This is when God elects if you will be in heaven or hell from the beginning. Your actions later on in life will not change the decision.
Catholicism: Salvation could be gained from indulgences. That means you will have to do something to get rid of your sins if you have any.
Similarities:
Both believe that the Bible is an important source of doctrine and truth.
Answer:
The Levellers came to prominence at the end of the First English Civil War (1642–46) and were most influential before the start of the Second Civil War (1648–49). Leveller views and support were found in the populace of the City of London and in some regiments in the New Model Army.
By the 1700's Austria and Spain were in conflict with each other over territory in Italy.
Hope this helps you! :-)