172.] When he heard that the fort of Saint-Loup was being attacked, Sir John Talbot sallied forth from the camp of Saint-Laurent-des-Orgerils.

In order to reach the threatened bastion he had some distance to go down his lines and along the border of the forest.

He set out, and on his way was reinforced by the garrisons of the western bastions.

The town watchmen observed his movements and sounded the alarm.

Marshal Boussac passing through the Parisis Gate, went out to meet Talbot on the north, towards Fleury.