"What the duke demands of you," said his advisers, "is to his own profit and to your hurt; if you aid him, your country will be much burdened; and if the duke fail, you will have the English your foes forever." The count of Flanders made show of a similar refusal; but privately he authorized William to raise soldiers in Flanders, and pressed his vassals to follow him.

William, having thus hunted up and collected all the forces he could hope for, thought only of putting them in motion, and of hurrying on the preparations for his departure.
Whilst, in obedience to his orders, the whole expedition, troops and ships, were collecting at Dives, he received from Conan II., duke of Brittany, this message: "I learn that thou art now minded to go beyond sea and conquer for thyself the kingdom of England.

At the moment of starting for Jerusalem, Robert, duke of Normandy, whom thou feignest to regard as thy father, left all his heritage to Alain, my father and his cousin: but thou and thy accomplices slew my father with poison at Vimeux, in Normandy.

Afterwards thou didst invade his territory because I was too young to defend it; and, contrary to all right, seeing that thou art a bastard, thou hast kept it until this day.

Now, therefore, either give me back this Normandy which thou owest me, or I will make war upon thee with all my forces." "At this message," say the chronicles, "William was at first somewhat dismayed; but a Breton lord, who had sworn fidelity to the two counts, and bore messages from one to the other, rubbed poison upon the inside of Conan's hunting-horn, of his horse's reins, and of his gloves.