Biography of William Deincourt 1st Baron Deincourt 1301-1364
Paternal Family Tree: Deincourt
In 1301 William Deincourt 1st Baron Deincourt was born to John Deincourt.
Before 09 Mar 1301 seven Earls and 96 Barons signed a letter to the Pope refuting the Pope's claim that Scotland was subject to the Pope's feudal overlordship. The letter was never sent. Those who signed include: John Warenne 6th Earl Surrey (age 70), Thomas Plantagenet 2nd Earl of Leicester, 2nd Earl Lancaster, Earl of Salisbury and Lincoln (age 23), Ralph Monthermer 1st Baron Monthermer (age 31), Humphrey Bohun 4th Earl Hereford 3rd Earl Essex (age 25), Roger Bigod 5th Earl Norfolk (age 56), Richard Fitzalan 8th Earl Arundel (age 34), Guy Beauchamp 10th Earl Warwick (age 29), Aymer de Valence 2nd Earl Pembroke (age 26), William Leybourne 1st Baron Leybourne (age 59), Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 20), William Latimer 1st Baron Latimer of Corby (age 58), Edmund Hastings, John Hastings 2nd Baron Hastings 14th Baron Bergavenny (age 14), Edmund Mortimer 2nd Baron Mortimer of Wigmore (age 50), Fulk Fitzwarin 2nd Baron Fitzwarin (age 16), Henry Percy 9th and 1st Baron Percy (age 27), Robert Fitzwalter 1st Baron Fitzwalter (age 54), John Beauchamp 1st Baron Beauchamp Somerset (age 26), William de Braose 2nd Baron de Braose (age 41), John Botetort 1st Baron Botetort (age 36), Reginald Grey 1st Baron Grey of Wilton (age 61), John Moels 1st Baron Moels (age 32), Thomas Berkeley 6th and 1st Baron Berkeley (age 55), Robert de Vere 5th Earl of Oxford, John Strange 1st Baron Strange Knockin (age 48), Thomas Multon 1st Baron Multon (age 25), Robert Clifford 1st Baron Clifford (age 26), Walter Beauchamp (age 58), Alan Zouche 1st Baron Zouche Ashby (age 33), John Segrave 2nd Baron Segrave (age 45), William Ferrers 1st Baron Ferrers of Groby (age 29), Simon Montagu 1st Baron Montagu (age 51), Piers Mauley, Ralph Neville 1st Baron Neville of Raby (age 38), John Mohun 1st Baron Dunster (age 32), Roger Scales 1st Baron Scales, Thomas Furnival 1st Baron Furnivall (age 41), Hugh Bardolf 1st Baron Bardolf (age 41), Gilbert Talbot 1st Baron Talbot (age 24), William Deincourt 1st Baron Deincourt, Edmund Stafford 1st Baron Stafford (age 28), Walter Fauconberg 1st Baron Fauconberg (age 81). 
On 27 Jan 1322 William Deincourt 1st Baron Deincourt (age 21) was created 1st Baron Deincourt.
Before 26 Mar 1326 William Deincourt 1st Baron Deincourt (age 25) and Millicent Zouche Baroness Deincourt were married. She by marriage Baroness Deincourt.
On 26 Mar 1326 [his brother-in-law] John Zouche (age 25) died.
On 26 Mar 1326 [his brother-in-law] Edmund Zouche (age 17) died.
On 26 Mar 1326 [his brother-in-law] Thomas Zouche (age 21) died.
On 26 Mar 1326 [his brother-in-law] Roger Zouche (age 23) died.
On 12 Apr 1326 [his brother-in-law] Eudo Zouche (age 28) died at Paris [Map].
Around 1327 [his son] William Deincourt was born to William Deincourt 1st Baron Deincourt (age 26) and [his wife] Millicent Zouche Baroness Deincourt at Blankney, Lincolnshire.
On 06 Jan 1327 [his uncle] Edmund Deincourt 1st Baron Deincourt (age 77) died at Emley Wakefield. His nephew William Deincourt 1st Baron Deincourt (age 26) succeeded 9th Lord Deincourt. [his wife] Millicent Zouche Baroness Deincourt by marriage Lord Deincourt. Baron Deincourt abeyant.
Around 1337 [his sister-in-law] Joan Zouche (age 37) died at Peckleton, Leicestershire.
Before 1344 Oliver Ingham and [his sister-in-law] Elizabeth Zouche were married.
Around 1344 [his daughter] Margaret Deincourt Baroness Tibetot was born to William Deincourt 1st Baron Deincourt (age 43) and [his wife] Millicent Zouche Baroness Deincourt at Blankney, Lincolnshire.
Around 1344 [his sister-in-law] Thomasina Zouche (age 29) died at Kirkby Mallory, Leicestershire.
On 17 Oct 1346 at the Battle of Neville's Cross near Durham, County Durham [Map] the English inflicted a heavy defeat on the Scottish army that had invaded England in compliance with their treaty with the French for mutual support against England.
The English army included: William Deincourt 1st Baron Deincourt (age 45), Henry Scrope 1st Baron Scrope Masham (age 34), Ralph Hastings (age 55), Ralph Neville 2nd Baron Neville of Raby (age 55), [his brother-in-law] Archbishop William Zouche, Henry Percy 10th and 2nd Baron Percy (age 45) and John Mowbray 3rd Baron Mowbray (age 35).
Of the Scottish army King David II of Scotland (age 22), John Graham Earl Menteith and William "Flower of Chivalry and Knight Liddesdale" Douglas 1st Earl Atholl (age 46) were captured and imprisoned in the Tower of London [Map].
Neil Bruce, John Randolph 3rd Earl Moray (age 40), David Hay 6th Baron Erroll (age 28) and Edward Keith of Sinton (age 66) were killed.
John Graham Earl Menteith was present.
On 31 Jan 1350 [his sister-in-law] Isabel Zouche (age 35) died at Wincanton, Somerset [Map].
On 11 Oct 1350 [his sister-in-law] Elizabeth Zouche died.
On 26 Dec 1357 [his son] William Deincourt 2nd Baron Deincourt was born to William Deincourt 1st Baron Deincourt (age 56) at Kirkby Bellars, Leicestershire.
On 02 Jun 1364 William Deincourt 1st Baron Deincourt (age 63) died. His eldest son died the same day - the cause of death of both men is unknown. His son [his son] William Deincourt 2nd Baron Deincourt (age 6) succeeded 2nd Baron Deincourt.
On 22 Jun 1379 [his former wife] Millicent Zouche Baroness Deincourt died at Blankney, Lincolnshire.
[his son] John Deincourt was born to William Deincourt 1st Baron Deincourt and Millicent Zouche Baroness Deincourt.
President George Washington x 1
Queen Elizabeth II of the United Kingdom x 11
GrandFather: John Deincourt 7th Lord Deincourt
Father: John Deincourt
Great x 2 Grandfather: Robert Fitzmaldred
Great x 1 Grandfather: Geoffrey Fitzrobert aka Neville
Great x 2 Grandmother: Isabel Neville of Raby
GrandMother: Agnes Neville
Great x 4 Grandfather: Baderon Monmouth Lord Monmouth
Great x 3 Grandfather: Gilbert Monmouth Lord Monmouth
Great x 4 Grandmother: Rohese de Clare
Great x 2 Grandfather: John Monmouth
Great x 1 Grandmother: Joan Monmouth
Great x 2 Grandmother: Cecilia Waleran