by JoelCFC25
Ireland coming into play at all
I've seen Ireland come under the control of all its potential activators: France, Spain, and the HRE. The Irish that materialize and go besiege Dublin are easily neutralized--England just spends 2 CP to move a galleon from one of the Channel ports into the Irish Sea to prevent the rebels from being able to assault. Someone controlling the Irish rebels could still try Treachery!, but it seems to be a standard play to deploy a few English troops to Dublin early on to guard against this possibility.
Execution of Mary will probably be uncommonly rare, and then almost always from an English Catholic Rebellion gone badly awry.