And then you just walk in and take them all, securing all of the Balkans in your swag popemobile at the staggering cost of like 210 mil points and 0 casualties
suk maa diiiik im the pope suk ma dik suk ma dik remove hapsbourg REMOVE HAPSBOURG you are worst hapsbourg YOU LIVE IN A DITCH and probably sleep with sister
*EDIT
And then after most of Austria's allies got eliminated by Papal white coats, after Bohemia decided to launch their own war to cleanse Austria of heresy - Russia joined in to boost the Papal war to 1,000,000 soldiers strong. rip hapsbourg
Sweden however does not care. The Swedes can stare down the swords of a million souls and fear not the coming storm, nor fear to walk amongst the innumerable dead. The Swede shall not ask whether honour matters or whether their cause was just, they shall simply carry on when everything is already lost, for the Swede must fear nothing but Finngolians and mildly hot weather
*EDIT
With the hapsbourgs assimilated in short order, the rest of the HRE crumbled in rapid succession - their great protector annihilated and annexed. With prince after prince falling to the livid Papacy, the last remaining elector of the Netherlands turned to the only Catholic ruler left who had managed to successfully resist the Pope.
GIGA-SWEDEN