Henry's army landed on the north bank of the Seine estuary near to the town of Harfleur (now part of Le Havre). Henry organised the siege of the town and waited for it to fall.

As part of the secret treaty of Richmond, an English garrison was allowed to station itself at Le Havre and would swap the town for Calais once Calais was recaptured. The garrison of around 3,000 men was lead by the Earl of Warwick. ^[1]

The Huguenots abandoned their treaty with Elizabeth and abandoned the English garrison at Le Harve. An outbreak of the plague struck the garrison leaving many dead or dying. Although reinforcements were sent to assist, the Earl of Warwick had little choice but to leave the town and return to England. The returning men bringing the plague back to England with them. ^[1]