asking Richard to assume the throne. He accepted on 26 June and was crowned at Westminster Abbey on 6 July. His title to the throne was confirmed by Parliament in January 1484 by the document Titulus Regius. The princes, who were still lodged in the royal residence of the Tower of London at the time of Richard's coronation, disappeared from sight after the summer of 1483. Although after his death Richard III was accused of having Edward and his brother killed, notably by More and in Shakespeare's play, the facts surrounding their disappearance remain unknown. Other culprits have been suggested, including Buckingham and even Henry VII, although Richard remains a suspect. After the coronation ceremony, Richard and Anne set out on a royal progress to meet their subjects. During this journey through the country, the king and queen endowed King's College and Queens' College at Cambridge University, and made grants to the church. Still feeling a strong bond with his northern estates, Richard later planned the establishment of a large chantry chapel in York Minster with over 100 priests. He also founded the College of Arms. Buckingham's rebellion of 1483 In 1483, a conspiracy arose among a number of disaffected gentry, many of whom had been supporters of Edward IV and the "whole Yorkist establishment". The conspiracy was nominally led by Richard's former ally, the Duke of Buckingham, although it had begun as a Woodville-Beaufort conspiracy (being "well underway" by the time of the Duke's involvement). Davies has suggested that it was "only the subsequent parliamentary attainder that placed Buckingham at the centre of events", to blame a disaffected magnate motivated by greed, rather than "the embarrassing truth" that those opposing Richard were actually "overwhelmingly Edwardian loyalists". It is possible that they planned to depose Richard III and place Edward V back on the throne, and that when rumours arose that Edward and his brother were dead, Buckingham proposed that Henry Tudor should return from exile, take the throne and marry Elizabeth, eldest daughter of Edward IV. It has also been pointed out that as this narrative stems from Richard's parliament of 1484, it should probably be treated "with caution". For his part, Buckingham raised a substantial force from his estates in Wales and the Marches. Henry, in exile in Brittany, enjoyed the support of the Breton treasurer Pierre Landais, who hoped Buckingham's victory would cement an alliance between Brittany