Scarcely three years after Robert had attained the Duchy he quarrelled openly with his brother, the Red King of England; and Rouen was instantly in an uproar under Conan, a rich bourgeois, who probably sided with William Rufus, because he saw more chance of a commune under a distant king than in the presence of a duke at Rouen. In the days of the Conqueror there had been no tyrants or demagogues in the city, no armies in civic pay, no dealings of the citizens with other princes. But now the chance for an independent commonwealth seemed really to have come. However, the youngest brother, Henri Beauclerc, came from Côtentin to assist Robert in his difficulty, but not before the debauched and treacherous duke had been obliged to fly by the eastern gate of Robec into the faubourg of Malpalu, where he was cordially welcomed, and passed on to safety in St. Sever. Then Henri Beauclerc, "The Lion of Justice," took up the fighting for himself, swiftly beat back the soldiers of the Red King, threw Conan, the leader of the revolt, into the Tower of the Dukes by the Seine, and finally cast him down headlong from the battlements to die upon the stones beneath. The place preserved the name of "Saut de Conan" for many years, in the south-east corner of the Halles. So this first Artevelde of Rouen came to an untimely end. Henri Beauclerc, helped by Robert of Bellesme, one of the de Warrens (whose tomb is in the church of Wantage), and by the Count of Evreux, proved far too strong for him and for his companion in revolt, William, the son of Ansgar, who had to pay a vast ransom as the price of disobedience, while many of the rebellious citizens were massacred, and this immature attempt to form a commune ended.
The three brothers continued to quarrel, and to make it up again for some years. First, Robert and Rufus combine against Henry. Then Robert sends over troops to help the barons who were rebelling against his brother in England. Finally he went off with his Uncle Odo on the first crusade in 1096, pledging the Duchy in his absence to his brother the Red King, who, of course, seized it, and the real quarrel between England and France began. For when Normandy had been independent, Rouen blocked the road from Winchester to Paris. But as soon as it belonged outright either to one or to the other, the ancestral strife of French against English was certain to begin, and to go on. The revolt of Elias, Count of Maine, against the English King was repressed by his imprisonment--by Robert of Bellesme again--in the same Tour de Rouen that had seen the death of Conan. But Rufus never used his great gifts and power of ruling for anything but evil, and his brother Henry followed him, the husband of that descendant of Edmund and of Alfred who called herself Matilda at his coronation.