Bona of Savoy XI. In 1464, Bona was to have been betrothed to Edward IV of England, until his secret marriage to Elizabeth Woodville was revealed. She married Galeazzo Maria Sforza on 9 May 1468. An alliance between the Sforza and the royal house of France had been rumoured from as early as 1460, and "in June 1464 Bona of Savoy was officially offered to Galeazzo by letters from the King of France and the Duke of Savoy." Bona's husband was assassinated, on 26 December 1476 at the age of 32 by three young noblemen on the porch of the cathedral church of
John Woodville Clarence against the King. The publication of this manifesto was deemed, by Warwick, to justify the execution of Rivers and his son. They were beheaded on 12 August and their heads placed on spikes above the gates of Coventry. Woodville died childless. John Woodville Sir John Woodville (c.1445 – 12 August 1469) was the second son, and fourth child, of Richard Woodville, 1st Earl Rivers and Jacquetta of Luxembourg. In January 1465, Woodville's sister, Queen Elizabeth, procured his marriage to Catherine Neville, Dowager Duchess of Norfolk (born c. 1400 – died after 1483), who was aunt to the powerful Richard