Science has proved that Edward IV’s more prominent sons are not in his tomb, which was opened a few times but not when anyone could have have been placed there.
Science will shortly prove that they are not in that Westminster Abbey urn, as you have maintained for so long.
So where are you going to claim they are next? If they were in, for instance, the chapel mentioned by Henry “Tudor”‘s crony, then they couldn’t have been in the urn when you said they were.
On the left is a copy of an email from Windsor Castle. Here is Timeline of references that they compiled.