Biography of William Mowbray 6th Baron Thirsk 1173-1224
Paternal Family Tree: Daubigny
Around 1173 William Mowbray 6th Baron Thirsk was born to Nigel Mowbray 5th Baron Thirsk (age 27) and Mabel Clare Baroness Thirsk (age 17).
Around 1175 [his father] Nigel Mowbray 5th Baron Thirsk (age 29) and [his mother] Mabel Clare Baroness Thirsk (age 19) were married. She by marriage Baroness Thirsk. She the daughter of Roger Clare 2nd Earl Hertford and Maud St Hilary Countess Hertford.
In 1188 [his grandfather] Roger D'Aubigny 4th Baron Thirsk (age 68) died in Palestine. His son [his father] Nigel Mowbray 5th Baron Thirsk (age 42) succeeded 5th Baron Thirsk.
Around 1191 [his father] Nigel Mowbray 5th Baron Thirsk (age 45) was killed in Acre. His son William Mowbray 6th Baron Thirsk (age 18) succeeded 6th Baron Thirsk.
In 1204 [his mother] Mabel Clare Baroness Thirsk (age 48) died at Axeholme.
In 1208 [his son] William Mowbray was born to William Mowbray 6th Baron Thirsk (age 35) and [his future wife] Avice D'Aubigny Baroness Okehampton Baroness Mowbray (age 12).
Before 1209 William Mowbray 6th Baron Thirsk (age 36) and Avice D'Aubigny Baroness Okehampton Baroness Mowbray (age 12) were married. She by marriage Baroness Thirsk. The difference in their ages was 23 years. She the daughter of William D'Aubigny 3rd Earl Lincoln 3rd Earl Arundel (age 29) and Mabel Gernon Countess Lincoln and Arundel. They were third cousins. She a great x 3 granddaughter of King Henry I "Beauclerc" England.
Before 02 Oct 1209 [his son] Roger Mowbray was born to William Mowbray 6th Baron Thirsk (age 36) and [his wife] Avice D'Aubigny Baroness Okehampton Baroness Mowbray (age 13).
After 1210 [his sister-in-law] Maud D'Aubigny died.
In 1214 [his wife] Avice D'Aubigny Baroness Okehampton Baroness Mowbray (age 18) died.
On 15 Jun 1215 King John "Lackland" of England (age 48) met with his Baron's at Runnymede [Map] where he agreed to the terms of the Magna Carta which attempted to reduce the King's authority through political reform. Those who signed as surety included:
Roger Bigod 2nd Earl Norfolk (age 71)
his son Hugh Bigod 3rd Earl Norfolk (age 33)
Henry Bohun 1st Earl Hereford (age 39)
[his uncle] Richard Clare 3rd Earl Hertford (age 62)
his son Gilbert Clare 5th Earl Gloucester 4th Earl Hertford (age 35)
William "The Younger" Marshal 2nd Earl Pembroke (age 25)
William Mowbray 6th Baron Thirsk (age 42)
Saer Quincy 1st Earl Winchester (age 45)
Robert Ros (age 43), Richard Percy 5th Baron Percy Topcliffe (age 45)
Robert de Vere 3rd Earl of Oxford (age 50)
Eustace Vesci (age 46)
John Fitzrobert 3rd Baron Warkworth (age 25)
John Lacy Earl Lincoln (age 23).
William D'Aubigny (age 64), Geoffrey Mandeville 2nd Earl Essex (age 24)
William Forz 3rd Earl Albemarle aka Aumale
William Hardell Lord Mayor
William Huntingfield
William Llanvallei
William Malet 1st Baron Curry Mallet
Roger Montbegon, Richard Montfichet
Geoffrey Saye (age 60) signed as surety the Magna Carta.
Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln (age 45) witnessed.
On 20 May 1217 William Marshal 1st Earl Pembroke (age 71) and Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln (age 47) fought at Lincoln, Lincolnshire [Map] during the Second Battle of Lincoln.
Rebels William Mowbray 6th Baron Thirsk (age 44) and William Ros (age 17) were captured. William D'Aubigny (age 66) fought for the rebels. Thomas Chateaudun I Count Perche (age 22) died fighting for the rebels.
Bishop Peter de Roches led a division of the royal army and earned some distinction by his valour.
On 24 Mar 1224 William Mowbray 6th Baron Thirsk (age 51) died. Baron Thirsk extinct.
[his son] Nigel Mowbray was born to William Mowbray 6th Baron Thirsk and Avice D'Aubigny Baroness Okehampton Baroness Mowbray.
Queen Anne Boleyn of England x 1
Queen Catherine Howard of England x 1
Jane "Nine Days Queen" Grey I Queen England and Ireland x 1
Queen Elizabeth II of the United Kingdom x 47
Queen Consort Camilla Shand x 18
Great x 3 Grandfather: William D'Aubigny 1st Baron Thirsk
Great x 2 Grandfather: Roger "Pincerna aka Butler" D'Aubigny 2nd Baron Thirsk
Great x 4 Grandfather: Osulf "fil France" Plessis
Great x 3 Grandmother: Adeliza Plessis
Great x 1 Grandfather: Nigel D'Aubigny 3rd Baron Thirsk
Great x 2 Grandmother: Amice or Alice de Grandesmil
GrandFather: Roger D'Aubigny 4th Baron Thirsk
Great x 1 Grandmother: Gundred Gournay Baroness Thirsk
Father: Nigel Mowbray 5th Baron Thirsk
GrandMother: Alice Gant Baroness Okehampton Baroness Mowbray
William Mowbray 6th Baron Thirsk
Great x 4 Grandfather: Gilbert Clare 2nd Count Eu
Great x 3 Grandfather: Richard de Clare
Great x 2 Grandfather: Gilbert de Clare
Great x 4 Grandfather: Walter Giffard 1st Earl Buckingham
Great x 3 Grandmother: Rohese Giffard
Great x 1 Grandfather: Richard de Clare
Great x 3 Grandfather: Hugh Claremont
Great x 2 Grandmother: Adeliza Claremont
GrandFather: Roger Clare 2nd Earl Hertford
Great x 3 Grandfather: Ranulf de Briquessart Gernon Viscount Bessin
Great x 2 Grandfather: Ranulf le Meschin Gernon 3rd Earl Chester
Great x 4 Grandfather: Richard Avranches Viscount Avranches
Great x 3 Grandmother: Margaret Avranches
Great x 4 Grandmother: Emma Mortain Viscountess Avranches
Great x 1 Grandmother: Alice Gernon
Great x 2 Grandmother: Lucy Bolingbroke Countess Chester
Mother: Mabel Clare Baroness Thirsk
GrandMother: Maud St Hilary Countess Hertford
