When, Beaurain set before him all the advantages that would accrue to their coalition from the Duke of Bourbon's alliance: "And I," said the king, brusquely, "what, pray, shall I get ?" "Sir," answered Beaurain, "you will be King of France." "Ah!" rejoined Henry, "it will take a great deal to make M.de Bourbon obey me." Henry remembered the cold and proud bearing which the constable had maintained towards him at the Field of Cloth of Gold.

He, nevertheless, engaged to supply half the expenses and a body of troops for the projected invasion of France.
Charles V.

immediately despatched Beaurain to the Duke of Bourbon, who had removed to Montbrison, in the most mountainous part of his domains, on pretext of a pilgrimage to Notre-Dame du Puy.

Beaurain was conducted thither, in great secrecy, on the 17th July, 1523, by two of the duke's gentlemen, and passed two days there shut up in a room adjoining the constable's apartment, never emerging save at night to transact business with him.

On the 18th of July, in the evening, he put into Bourbon's hands his letters of credit, running thus: "My dear cousin, I send to you Sieur de Beaurain, my second chamberlain.