I've had another look at the save, and I noticed that we had a lot of units defending our cities. I'd even say too many. I propose this:
Move the cover axeman from Riversight SE-SE. When he arrives there, attack Lyons with him first (he has 60.8% chance to kill the archer, if memory serves me correctly). Then attack the remaining spearman with the shock axes, and if the archer survives the first attack, kill him too. We will now have Lyons!
At the same time, move the 8 (!) Keshiks from the south coast along the coast north west. Kill the axes and spears when they land. When they've done this, move at least 6 of them north towards the barbarian city, picking up the now healed chariot in Riversight along the way. Take this city when it has reached size 2. If we have more than enough Keshiks, we might want to send some to Orleans to help there.
Move 2 of our axes in Rheims towards Orleans. The chariot and 1 axeman can defend it for now. Also move the new units build in the cities and our catapult to Orleans. Take that city, and sue for peace.
Move the cover axeman from Riversight SE-SE. When he arrives there, attack Lyons with him first (he has 60.8% chance to kill the archer, if memory serves me correctly). Then attack the remaining spearman with the shock axes, and if the archer survives the first attack, kill him too. We will now have Lyons!
At the same time, move the 8 (!) Keshiks from the south coast along the coast north west. Kill the axes and spears when they land. When they've done this, move at least 6 of them north towards the barbarian city, picking up the now healed chariot in Riversight along the way. Take this city when it has reached size 2. If we have more than enough Keshiks, we might want to send some to Orleans to help there.
Move 2 of our axes in Rheims towards Orleans. The chariot and 1 axeman can defend it for now. Also move the new units build in the cities and our catapult to Orleans. Take that city, and sue for peace.