Philip II Augustus: The Affirmation of Capetian Power (1180–1223) · HIGH MIDDLE AGES
The year 1204 marks a radical turning point: Normandy, the wealthiest and most strategically important of Plantagenet continental possessions, definitively passes under royal control.
Rouen’s fall (June 1204) represents more than a military victory:
The conquest of Normandy is not the work of a single battle, but of methodical pressure, siege after siege, castle after castle, throughout 1202–1204.