He loses all the public money. And all of the travel associated with the military honors(lots of ceremonies and regimental dinners). But its really a slap to him. Its the one thing he took seriously as a royal. The military honors he took seriously. And now they have turned on him, and he will never get them back. He is falling far and his reputation is truly destroyed. He is a social leper who will remain essentially under self house arrest as both the public and his peers will shun, mock and jeer any public appearance.
And once the civil case happens, and it appears she is going for court as she wants a public airing, he will lose what little is left, possibly his Duke status, perhaps disowned by the family, and will hopefully have nothing left.
Let the fucker commit suicude imo.