On Christmas Day 1100 Baldwin I, first king of the Frankish Kingdom of Jerusalem, was crowned in Bethlehem, and that year a Latin episcopate was also established in the town.
But when he overextended himself with an attack on the cathedral city of Chartres in 911, Rollo's forces were given a bloody nose by the Frankish magnate Robert of Neustria.
So Charlemagne, the German Frankish king, has conquered all of Western Europe now comes down to Rome and gets crowned as the Roman Emperor, which is a significant event.