The legates of Pope Martin V.had set about establishing peace between the Burgundians and Armagnacs, as well as between France and England; they had prepared, on the basis of the treaty of Arras, a new treaty, with which a great part of the country, and even of the burgesses of Paris, showed themselves well pleased; but the constable had it rejected on the ground of its being adverse to the interests of the king and of France; and his friend, the chancellor, Henry de Marle, declared that, if the king were disposed to sign it, he would have to seal it himself, for that, as for him, the chancellor, he certainly would not seal it.

Bernard of Armagnac and his confidential friend, Tanneguy Duchatel, a Breton nobleman, provost of Paris, were hard and haughty.
When a complaint was made to them of any violent procedure, they would answer, "What business had you there?
If it were the Burgundians, you would make no complaint." The Parisian population was becoming every day more Burgundian.

In the latter days of May.

1418, a plot was contrived for opening to the Burgundians one of the gates of Paris.

Perrinet Leclerc, son of a rich iron-merchant having influence in the quarter of St.Germain des Pros, stole the keys from under the bolster of his father's bed; a troop of Burgundian men-at-arms came in, and they were immediately joined by a troop of Parisians.