Nearing the end of the campaign season the governor, wishing to keep French presence in the area, moved his army to the site and constructed a post and named it after himself.

The Seneca, in reprisal for Denonville's attack of 1687, laid siege to the fort and denied the garrison the benefits of forage or fresh air.

Eighty-nine of the garrison died of scurvy, disease, and starvation during the siege.

[1] On Good Friday of 1688 a relief force returned and found twelve survivors.

The chaplain of the relief force, Jesuit Father Pierre Millet, erected a cross and gave a mass of thanksgiving for their survival.