Pg 417 Thomas Beaufort, was, 5 Jul 1411, cr Earl of Dorset. On 18 Nov 1416 he was cr., for life only, Duke of Exeter54947

Pg 14 Thomas Beaufort, K.G. Abt Chancellor of England, Admiral of England, Ireland & Aquitaine, created Earl of Dorset, at seige of Harfleur, created Duke of Exeter, at siege of Rouen and of Melun17384

Vol 02 Image49of460 Pg 49 Sir Thomas Beaufort, Duke of Exeter, warrior and chancellor; was called “De Beaufort” after his father’s castle of that name17387
Vol 19 Image259of1413 Pg 244 Thomas Beaufort, duke of Exeter
Vol 22 Image87of1511 Pg 79 Beaufort, Sir Thomas, Duke of Exeter