Pope Gregory the Great -> The First Cursade (jan 1, 590 – dec 31, 1094)
Description:
The first pope to effectively use military power, either directly or through a king or other secular ruler, to spread or protect the influence of the papacy was Pope Gregory I (also known as Gregory the Great, 590–604 AD). While earlier popes had exercised influence through diplomacy, religious authority, or theological means, Gregory I was the first pope to wield military or political power in a more direct and influential way.
Added to timeline:
Date: