Duke Warwick is in Dukedoms of England Alphabetically, Dukedoms of England Chronologically, Extinct Dukedoms of England.
Summary
14th April 1445. Henry Beauchamp 1st Duke Warwick [aged 20] created.
11th June 1446. Henry Beauchamp 1st Duke Warwick extinct.
Chronicle of Gregory. 1445. And that same year was the Erle of Warwyke [aged 19] made Duke of Warwyke.
On 14th April 1445 Henry Beauchamp 1st Duke Warwick [aged 20] was created 1st Duke Warwick by his third cousin King Henry VI of England and II of France [aged 23]. Cecily Neville Duchess Warwick [aged 21] by marriage Duchess Warwick.
On 11th June 1446 Henry Beauchamp 1st Duke Warwick [aged 21] died at Hanley Castle, Worcestershire. Duke Warwick extinct. His daughter Anne [aged 2] succeeded 15th Countess Warwick, 7th Baroness Burghesh.