Pull the other leg, Dale, it's got bells on. Your tale was wildly improbable enough already, and you want to add MORE impossible stuff to it?
You've already been told that You. Cannot. Just. Declare. People. Dead.
It. Does. Not. Happen.
(Not in real life, at least. In historical and fantasy fiction you can get away with a lot more, but the key word is FICTION.)
It is *highly* probable that John Perrott was dead within six months of his applying to the Inns of Court - London can be a *very* unhealthy place for the unseasoned.
As of early 1584, Sir John Perrott (the original) was going through all kinds of circuses trying to get his illegitimate son James - his *youngest* son James - acknowledged and placed in a position where he could be a secondary heir. "[O]n 29 May 1584 his father, who was then about to leave for Dublin, formally acknowledged him. Sir John instructed that his property should descend to those of his own blood and name, or at the least ‘to such of his name as he liketh and careth for’,30 and provision was made for James to inherit a valuable parcel of land outside Haverfordwest known as Prior’s Hill.31 Six years later [1590], Sir John reaffirmed his intention to provide for his illegitimate son after learning that the conveyance of 1584 had failed to settle upon James the remainder to his estates. Accordingly, a fresh assurance was drawn up, to which lord treasurer Burghley (William Cecil†) and Sir Henry Cobham (Henry Cobham alias Brooke I†) were signatories.32"
No one mentioned son John . No one seems to have thought twice about John. If he was not dead by the end of March 1584, he was *surely* deceased by 1590, as Sir John Perrott was down to one legitimate son (William, his younger legitimate son, having died in 1587). Then, if ever, was the time to bring his other sons - if he had more than one left - into the succession as far as he could manage it. But it was all about James. Only James. The conclusion is obvious.
The single record concerning John Perrott, "third son" of Sir John, states explicitly that he "d.s.p." (decessit sine prole, died without offspring). No other unequivocal records later than 1583 - *none* - have ever been found.
There were other John Perrotts, in Carmarthenshire and elsewhere, in the 1620s. And Sir *James* was on active anti-piracy duty since 1608: "commr. admty. causes 1608,9 inquiry into lands belonging to his father 1610;10 dep. v.-adm. S. Wales for Pemb., Card., Carm. c.1611-d.,11 commr. levying mises, Pemb. 1612,12 subsidy, Haverfordwest 1622,13 piracy causes, S. Wales 1623,14 Irish wreck, Pemb. 1623,15 subsidy arrears, Haverfordwest 1626,16 Forced Loan, Pemb. 1627;17 ?col. militia ft. Pemb. c.1627;18 commr. knighthood fines, Pemb. 1630,19 wreck inquiry 1631,20 exacted fees, Pemb., Carm., Card. 1635."
Wreck inquiries in 1623 and 1631 suggest that it was probably Sir James (erroneously referred to as "Sir John" - there was no other John Perrott who had been knighted) who was wreck-hunting in 1629.
"We" are not here for any reason but to ascertain the facts as best we can. YOU apparently are here to spout wild and implausible-to-impossible tales and demand that everyone else accept them with no proof whatsoever other than your say-so.
YOU reject any possible origin for your line other than this bizarre fantasy. YOU refuse to look for any other source. YOU keep rejecting any explanations that do not mesh with your fantasy. YOU keep running up blind alleys, and getting angry and abusive when other people refuse to run their heads into YOUR stone walls.