The earl of Warwick,styled the "Kingmaker", has a healthy son. If he survives the Wars of the Roses, would'nt it make his sister's marriages less likely to the 2 Yorkist princes, since he will likely inherit most of the lands in question. Also, would'nt a son of the earl of Warwick have a stronger claim to the throne than Henry Tudor, since they both descend from the Beaufort line?