Lusitania
Donor
Well I hope those that like this idea have read my TL where some version of this takes place.A Portuguese version of Anglican where segment of church allies itself with royals and the enlightened segment of population could have a chance of succeeding. It would need to be supported by English alliance or the threat of English support to keep Spain at bay. A Spain preoccupied with other matters be it internal or external would also work. Then by time they becAme fixated on Portugal it would be too late.