[3] In 1686 Governor Denonville asked Lamberville to persuade the Iroquois chiefs to come to Fort Frontenac for a parley.
Denonville had them seized, chained, and shipped off to Marseilles, France, to serve in the galley fleet.
[4][disputed – discuss] Lamberville received word of this from some English traders at Onondaga, who urged the priest to return with them to the safety of New York, where Governor Dongan, would arrange passage to France.
While Denonville pursued his campaign against the Seneca, Lamberville remained as chaplain at Frontenac, where he and a good part of the garrison came down with scurvy.
[6] At Montreal, when the Onondagas and Mohawks harassed French allies, Lamberville consented to negotiate peace.
His wise diplomacy obtained a mitigation of the humiliating terms proposed at Governor Dongan's instigation, and Denonville duly praised his ability[6] His health shattered, Lamberville's superior's sent him back to France as procurator of the Canadian mission.