Richard, Duke of Gloucester certainly cleaned up Edward IV’s mess by declaring his children bastards, naming himself King Richard III, and murdering his two nephews, Richard, Duke of York, and Edward V.
Actually Parliament petitioned the Duke of Gloucester to become King rather than have them go through another child king which had led to disaster in the past. Also, the Bishop, Robert Stillington, showed up on the doorstep to reveal that Edward was not married to Elizabeth Woodville since he had married another lady years before. This, actually, was a common ploy of Edward’s. He was known to have slept with half the women of England. In fact, he bears an uncommon resemblance to Mr. Bill Clinton who also used ruses to get his BJs. Lastly, who says the kids were murdered? No evidence. The German diplomat, Von Poppelau said they were alive as late as 1485 - several months before Richard 3 himself died.
Anyone who thinks The Duke, appointed by his brother as Protector of the Realm in case of his death, had an easy or happy time of it in the spring of 1483, does not know the full story. I recommend historians John Ashdown-Hill and my pal, Stephen Lark, for the full story.
These old dead white guys remind me of the Clintons.