Tuhia he tomokanga mō tēnei wāhanga - I hopukina a Ouvrard i te 27 o Hānuere 1800 i runga i ngā whakahau a te Kaunihera Tuatahi o taua wā, a Napoleon Bonaparte, engari i kitea e te arotake o ana pūkete me ana kirimana, kāore he hē. I tukuna a Ouvrard. I āwhina ia ki te whakarato i te ope taua mō tōna Marengo
kaupapa.