In general, if you have a strong ally and you get your dynasty on their throne, what's the correct age to break the alliance so you are able to DoW immediately if they have no heir when their current ruler dies?
As Spain, I got Trastámara on the Austrian (union over Hungary) throne within the first years of the game! But they were my most reliable ally vs France, so I didn't want to break my alliance to soon. Usually I am for around when their current ruler is 45. It worked out for me in the end although I had two missed attempts when their ruler died younger and got an heir before the truce was over.
I genuinely love the PU game. It's so rewarding when it works out.
As Spain, I got Trastámara on the Austrian (union over Hungary) throne within the first years of the game! But they were my most reliable ally vs France, so I didn't want to break my alliance to soon. Usually I am for around when their current ruler is 45. It worked out for me in the end although I had two missed attempts when their ruler died younger and got an heir before the truce was over.
I genuinely love the PU game. It's so rewarding when it works out.