The Battle of Znaim occurred after the French victory at Wagram — This indicates that despite a significant earlier win, Napoleon faced resistance from the retreating Austrians.
Austria requested an armistice due to increasing threats — This suggests the campaign's momentum shifted towards France but required negotiation for peace.
The Treaty of Schönbrunn likely set new borders and reduced Austrian influence in Central Europe.
This is John Gill's detailed study of the final battle of the 1809 campaign between France and Austria. I have gamed it a couple of times, largely because it appeals to me for the key role my favourite French Marshal, Marmont, plays.
