At this juncture Buckingham comes to the front, as the undoubted agent and zealous coadjutor of Gloucester, in aiding his ultimate design, and also by apparently acquiescing in any measures, however desperate, that might lead to its fulfilment. Gloucester doubtless thoroughly estimated the unenviable character of his ally. He knew of Buckingham's hatred of the Queen-Mother and her family, and that in consequence, his allegiance to the young King was of very doubtful character, if secretly he did not equally dislike him, though he dared not shew it, and Gloucester was further aware of Buckingham's grievance at never having been possessed of that which by heirship he was entitled to, a moiety of the great Bohun estates, and which had been hitherto vested in the Crown, unjustly as he considered, and Gloucester, it is said, duly whetted his companion's hopes by the promise of the restoration of this, when seated on the throne. Prompt action was now decided on. Widville and Grey, with their associates, were to be dispatched, and orders were sent down to Pontefract to Sir Richard Ratcliffe for that purpose, and it was further determined that Lord Hastings was to be won over if possible, if not the same fate was to be reserved for him. Then came Gloucester's tampering with Sir Edmund Shaw, the Lord Mayor, and his brother, the truculent preacher Dr. John Shaw, and the pretences of trying to assume the illegitimacy of Edward's children, and failing that, of Edward IV. himself. Then the simulation of feigning to prepare for the young King's coronation, and the two Councils, one in Gloucester's interests, intriguing for its delay at Baynard's Castle, and the other arranging it for the King in the Tower. Stanley, in the King's Council, was assured there was mischief in Gloucester's designs, but Hastings was slow to believe such treachery, until the truth was apparent to him, when the wretched emissary, Catesby, left him for the second and last time, a betrayed and doomed man. Immediately on this followed the frightful incident in the Tower, and the murder of Hastings,--for it was nothing less,--a scene described at length elsewhere.[18] On the same day the victims at Pontefract were disposed of. Concerning the barbarous execution of Earl Rivers and his unfortunate companions we get the following graphic picture from More,--