The Rouen Rebellion and Henry’s Role in…

1090 CE

The Rouen Rebellion and Henry’s Role in Conan Pilatus’ Execution (1090)

By late 1090, the conflict between William Rufus and Robert Curthose for control over Normandy and England continued. William Rufus, who had already consolidated his rule in England, was now working to undermine Robert’s position in Normandy, forming alliances with barons in Normandy and Ponthieu. Robert, in turn, allied with Philip I of France, hoping to resist his brother’s encroachments.

In this context, William Rufus encouraged a rebellion in Rouen, led by Conan Pilatus, a powerful burgher. The uprising led to brutal street fighting, in which Henry played a decisive role, gaining military renown but also alienating Robert, leading to his expulsion from Rouen.

The Rebellion in Rouen (Late 1090)

William Rufus instigated Conan Pilatus, a prominent citizen of Rouen, to rise against Robert Curthose, taking advantage of discontent within the ducal capital.
Conan was widely supported by the people of Rouen and sought to convince ducal garrisons to switch sides.
Robert Curthose issued an appeal for aid from his barons, and Henry was the first to arrive in November 1090, demonstrating his ambition and military skill.

The Battle for Rouen

Street fighting broke out, with both sides struggling to control key areas of the city.
Robert and Henry led their forces out of the castle to engage the rebels, but Robert soon retreated, leaving Henry to continue the fight alone.
Despite Robert’s absence from the battlefield, ducal forces gained the upper hand, and Henry ultimately captured Conan Pilatus.

The Execution of Conan Pilatus

Henry viewed Conan as a traitor, as he had turned against his rightful feudal lord, Robert Curthose.
Despite Conan’s offers of a massive ransom, Henry dragged him to the top of Rouen Castle and threw him to his death, making an example of him.
Henry’s brutality was not condemned; rather, it was seen as an appropriate act of feudal justice, further enhancing his reputation.

Robert Expels Henry from Rouen

Despite Henry’s heroic role in the battle, Robert forced him to leave Rouen soon after.
The reasons for Robert’s actions are unclear, but possible motivations include:
- Jealousy—Henry had taken a more active role in the fighting than Robert.
- Henry’s request to be reinstated as Count of the Cotentin, which Robert likely refused.
Once again, Henry found himself without a formal title or strong power base, though his military reputation had grown significantly.

Consequences and Significance

The failure of the Rouen rebellion weakened Robert Curthose, proving that he lacked strong control over his own capital.
Henry emerged as a rising military leader, with his ruthless justice against Conan reinforcing his reputation as a decisive, pragmatic ruler.
William Rufus continued to undermine Robert’s position in Normandy, eventually leading to greater conflicts between the two brothers.

The rebellion in Rouen (1090) and Henry’s decisive actions set the stage for his eventual rise to power, even as he remained without lands or a formal title—for now.