High Quality Content by WIKIPEDIA articles! Duke of Clarence is a title which has been traditionally awarded to junior members of the English and British Royal families. The first three creations were in the Peerage of England, the fourth in the Peerage of Great Britain, and the fifth in the Peerage of the United Kingdom. The title was first granted to Lionel of Antwerp, the third son of King Edward III, in 1362. Since he died without sons, the title became extinct. The title was again created in favour of Thomas of Lancaster, the second son of King Henry IV, in 1412. Upon his death, too, the title became extinct. The last creation in the Peerage of England was for George Plantagenet, brother 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 (at least according to William Shakespeare) 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.