Duke of Clarence of King Edward IV, in 1461. The Duke forfeited his title in 1478, after he had been convicted of treason against his brother. He allegedly met his end (according to William Shakespeare) by being drowned in a butt of Malmsey. A fourth creation in England was suggested and planned to take effect; the title of Duke of Clarence was going to be given to Lord Guilford Dudley, husband of Lady Jane Grey, upon her coronation, as she declined to make her husband king consort. However, she was deposed before this could take effect. Two double dukedoms, of Clarence and St
Duke of Clarence and Avondale the last royal dukedom to be created with two territorial designations. The Duke died of pneumonia in 1892 and the title again became extinct. Duke of Clarence and Avondale Duke of Clarence and Avondale was a title awarded to a prince of the British Royal Family; the creation was in the Peerage of the United Kingdom. 'Clarence' is believed to refer to Clare in Suffolk; 'Avondale' refers to the valley of the Avon Water in Scotland. While there had previously been several creations of Dukes of Clarence (and one Duke of Clarence and St Andrews), the sole creation of a