Stephen II
Stephen · 752 – 757
Crossed the Alps to beg the Frankish king for military help and created the Papal States in the process.
When the Lombards threatened to overrun Rome in 753, Stephen II did something no pope had done before: he crossed the Alps in winter to personally ask the Frankish king Pepin the Short for military intervention. Pepin agreed, drove the Lombards back twice, and donated the conquered territories to the pope. This "Donation of Pepin" created the Papal States, giving the papacy temporal territory it would hold for over a thousand years. Stephen also anointed Pepin and his sons, including the future Charlemagne, strengthening the alliance between the papacy and the Frankish monarchy. It was a masterpiece of practical politics that fundamentally changed the papacy from a purely spiritual office to a territorial power.
The Birth of the Papal States
Stephen's deal with Pepin gave the pope something Peter never had: land, armies, and political power. Whether that was good for the Church is a question Catholics have debated ever since. The temporal power protected the papacy's independence for centuries, but it also entangled popes in wars, alliances, and political compromises that had nothing to do with the Gospel.