For the establishment, however, of a young and disputed authority there is need of something more than brilliant ceremonies and words partly minatory and partly coaxing. William had to show what he was made of. A conspiracy was formed against him in the heart of his feudal court, and almost of his family. He had given kindly welcome to his cousin Guy of Burgundy, and had even bestowed on him as a fief the countships of Vernon and Brionne. In 1044 the young duke was at Valognes; when suddenly, at midnight, one of his trustiest servants, Golet, his fool, such as the great lords of the time kept, knocked at the door of his chamber, crying, “Open, open, my lord duke: fly, fly, or you are lost. They are armed, they are getting ready; to tarry is death.” William did not hesitate; he got up, ran to the stables, saddled his horse with his own hands, started off, followed a road called to this day the duke’s way, and reached Falaise as a place of safety. There news came to him that the conspiracy was taking the form of insurrection, and that the rebels were seizing his domains. William showed no more hesitation at Falaise than at Valognes; he started off at once, repaired to Poissy, where Henry I., king of France, was then residing, and claimed, as vassal, the help of his suzerain against traitors. Henry, who himself was brave, was touched by this bold confidence, and promised his young vassal effectual support. William returned to Normandy, summoned his lieges, and took the field promptly. King Henry joined him at Argence, with a body of three thousand men-at-arms, and a battle took place on the 10th of August, 1047, at Val des Dunes, three leagues from Caen. It was very hotly contested. King Henry, unhorsed by a lance-thrust, ran a risk of his life; but he remounted and valiantly returned to the melley. William dashed in wherever the fight was thickest, showing himself everywhere as able in command as ready to expose himself. A Norman lord, Raoul de Tesson, held aloof with a troop of one hundred and forty knights. “Who is he that bides yonder motionless?” asked the French king of the young duke. “It is the banner of Raoul de Tesson,” answered William; “I wot not that he hath aught against me.” But, though he had no personal grievance, Raoul de Tesson had joined the insurgents, and sworn that he would be the first to strike the duke in the conflict. Thinking better of it, and perceiving William from afar, he pricked towards him, and taking off his glove struck him gently on the shoulder, saying, “I swore to strike you, and so I am quit: but fear nothing more from me.” “Thanks, Raoul,” said William; “be well disposed, I pray you.” Raoul waited until the two armies were at grips, and when he saw which way victory was inclined, he hasted to contribute thereto. It was decisive: and William the Bastard returned to Val des Dunes really duke of Normandy.