Catholicism

Pope Gregory XV

Pope Gregory XV was the head of the Catholic Church from 1621 until his death in 1623. He was born in Bologna, Italy, in 1554.

Protestantism

What is Protestantism?

Protestantism is a major branch of Christianity that originated in the 16th century as a reaction to the Roman Catholic Church.

Catholicism

Pope John Paul I

Pope John Paul I (1912-1978) was the shortest-reigning pope in the history of the Catholic Church.