Yeah, you'll have to wait for his son. In my current Sicily game, I waited on Free Investiture, because the Prince-Bishop of Benevento and the Pope are always going to hate each other anyway so long as the Pope has that barony in the county so I already had one bishop in my pocket. But, I had already changed my succession law prior to forming the Kingdom, so I didn't need the power to get rid of 2nd sons.I formed the Kingdom of Sicily as Apulia and changed my papal investiture crown law to free so I could fix some troublesome bishops while simultaneously disinheriting my sons to prevent my kingdom from splitting up (robert is still rocking at 78 though). When I go to increase my other crown law it just says "you can only change one crown law" so am I completely screwed for the entire time Robert runs Sicily? I have no plots to raise it there's no expiration date on when it wears off. Should I have gone to limited crown authority first then changed the papal succession later? I assume when Robert dies his son will be able to finally change it?