Unfortunately, no, you’d have no claim to anything and because the 14th century was quite a long time ago and Elizabeth Woodville was not born a Royal. Had she been a Princess, then you’d still have no claim because all these centuries later you are now too far removed from the ‘inner circle’ who are now titled, etc.
Further, given what we’ve discovered about Edward IV, biologically he wasn’t a Royal either, should never have sat on the throne, so neither were his kids to Woodville, Royal. And the whole succession after has been a lie.
However, we can’t change history........so all you have is ‘bragging’ rights basically, to the wife of a King, assuming you’ve a solid, credible trail showing the relationship.