Ex-Communication War?

[Actinguy]

Greetings, super friends! In the England/Normandy/Norway battle, the Bastard managed to get the King of England excommunicated. The Duke of Brittany and the King of Scotland have now declared ex-communication war on England. What are the objectives of such a war?

thanks!

 

[Chipster]

I think that if you lose an excommunication war, you lose all your titles and your heir gains power. I only declared one excommunication war in the demo and was never the subject of one, so I'm not sure if there is additional effects as the player when losing.