That the fullness of Truth can find its origin (it's "seeds") in earlier thoughts and beliefs is certainly a true statement. But where in the writings of Ribera, Alcazar, or Bellarmine does one purport to find a hint of a Pre-Trib Rapture? They are known to have espoused a "futurist" view of Revelation and other Bible prophecy. But a futurist view of Biblical prophecy doesn't necessarily entail a Pre-Trib Rapture.
There has been one poster on this thread who claimed the PTR can be found in the writings of the Early Church Fathers. To say the least, said poster has failed in trying to substantiate that claim -- even to the point of making an attempt.
You're trying to put the PTR about a Millenium later (still late, though earlier than Margaret MacDonald). Though the proof that any of these men give credence to that is still lacking.
What in their writings supports a view of the PTR?
LOL ... “To say the least, said poster has failed in trying to substantiate that claim — even to the point of making an attempt.” Wrestling with a pig gets mud on your sleeves and the pig loves the attention. To you I wouldn’t waste time sharing anything I have studied. Are you a Preterist or partial preterist? You certainly are one to mischaracterize for your ego’s sake ... your first name wouldn’t be Hank, would it?
But if you believe that such things as praying to created beings in Heaven validly finds its origin (it's "seeds") in the earlier thoughts and beliefs of the Scriptures, then you should have little problem with developing the PTR (which i do not subscribe to as a futurist) out of futurism, though i do.