Biography of William Marshal 1st Baron Marshal 1277-1314
Paternal Family Tree: Marshall
Before 24 Sep 1277 [his father] John Marshal (age 20) and [his mother] Hawise Unknown were married. He a great x 5 grandson of King Henry I "Beauclerc" England. 
On 24 Sep 1277 William Marshal 1st Baron Marshal was born to John Marshal (age 20) and Hawise Unknown at Denham Hartismere, Suffolk.
On 04 Dec 1282 [his father] John Marshal (age 25) died.
In or before 1292 William Marshal 1st Baron Marshal (age 14) and Christiana Fitzwalter Baroness Marshal (age 16) were married. She a great x 2 granddaughter of King Henry "Curtmantle" II of England. 
In 1292 [his son] John Marshal 2nd Baron Marshal was born to William Marshal 1st Baron Marshal (age 14) and [his wife] Christiana Fitzwalter Baroness Marshal (age 17). He a great x 3 grandson of King Henry "Curtmantle" II of England.
In 1293 [his brother-in-law] Walter Fitzrobert (age 18) died at Little Dunmow Priory [Map].
Around 1298 [his daughter] Denise Marshal was born to William Marshal 1st Baron Marshal (age 20) and [his wife] Christiana Fitzwalter Baroness Marshal (age 23). She a great x 3 granddaughter of King Henry "Curtmantle" II of England.
Around 1300 [his daughter] Hawise Marshal 3rd Baroness Marshal was born to William Marshal 1st Baron Marshal (age 22) and [his wife] Christiana Fitzwalter Baroness Marshal (age 25) at Hockering, Mitford. She a great x 3 granddaughter of King Henry "Curtmantle" II of England.
After 1300 [his brother-in-law] Robert Fitzwalter 2nd Baron Fitzwalter and Joan Botetort were married. He a great x 2 grandson of King Henry "Curtmantle" II of England.
On 25 Feb 1308 King Edward II of England (age 23) was crowned II King England at Westminster Abbey [Map] by Henry Woodlock, Bishop of Winchester. Isabella of France Queen Consort England (age 13) was crowned Queen Consort England.
Piers Gaveston 1st Earl Cornwall (age 24) carried the Royal Crown.
William Marshal 1st Baron Marshal (age 30) carried the Gilt Spurs.
Humphrey Bohun 4th Earl Hereford 3rd Earl Essex (age 32) carried the Royal Sceptre.
Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 27) carried the Royal Rod.
Thomas Plantagenet 2nd Earl of Leicester, 2nd Earl Lancaster, Earl of Salisbury and Lincoln (age 30) carried the sword Curtana (the sword of Edward the Confessor).
Roger Mortimer 1st Earl March (age 20) carried the table bearing the Royal Robes.
Thomas Grey (age 28) and [his father-in-law] Robert Fitzwalter 1st Baron Fitzwalter (age 61) attended.
Before 21 Oct 1309 Hugh Neville 1st Baron Neville Essex (age 33) and [his sister-in-law] Ida Fitzwalter Baroness Neville Essex (age 17) were married. He a great x 5 grandson of King Henry I "Beauclerc" England. She a great x 2 granddaughter of King Henry "Curtmantle" II of England. 
Around 19 Mar 1311 the nobility attempt to constrain King Edward II of England (age 26) by imposing a Council of Ordainers upon him. The Council included twenty-one signatories including:
Guy Beauchamp 10th Earl Warwick (age 39).
Robert Clifford 1st Baron Clifford (age 36).
Thomas Plantagenet 2nd Earl of Leicester, 2nd Earl Lancaster, Earl of Salisbury and Lincoln (age 33).
Gilbert de Clare 8th Earl Gloucester 7th Earl Hertford.
Henry Lacy 4th Earl Lincoln, Earl Salisbury.
John Capet 4th Earl Richmond (age 45).
William Marshal 1st Baron Marshal (age 33), and.
Aymer de Valence 2nd Earl Pembroke (age 36).
Before 24 Jun 1314 William Marshal 1st Baron Marshal (age 36) was created 1st Baron Marshal. [his wife] Christiana Fitzwalter Baroness Marshal (age 39) by marriage Baroness Marshal.
On 24 Jun 1314 the Scottish army of Robert "The Bruce" I King Scotland (age 39) including, James "Black" Douglas (age 28), heavily defeated the English army led by King Edward II of England (age 30) at the Battle of Bannockburn.
Gilbert de Clare 8th Earl Gloucester 7th Earl Hertford was killed. Earl Gloucester, Earl Hertford extinct.
John Comyn 4th Lord Baddenoch (age 20), Robert Felton 1st Baron Felton (age 44) and William Vesci were killed.
William Marshal 1st Baron Marshal (age 36) was killed. His son [his son] John Marshal 2nd Baron Marshal (age 22) succeeded 2nd Baron Marshal.
Robert Clifford 1st Baron Clifford (age 40) was killed. His son Roger Clifford 2nd Baron Clifford (age 14) succeeded 2nd Baron de Clifford.
John Lovell 2nd Baron Lovel (age 25) was killed. His son John Lovell 3rd Baron Lovel succeeded 3rd Baron Lovel of Titchmarsh.
Henry Bohun was killed by Robert "The Bruce" I King Scotland (age 39). He was buried in Llanthony Secunda Priory, Gloucestershire [Map].
Walter Fauconberg 2nd Baron Fauconberg (age 50) possilby died although his death is also reported as being on 31 Dec 1318.
Bartholomew Badlesmere 1st Baron Badlesmere (age 38), Humphrey Bohun 4th Earl Hereford 3rd Earl Essex (age 38), Goronwy ap Tudur Hen Tudor, Henry Beaumont Earl Buchan (age 35), Aymer de Valence 2nd Earl Pembroke (age 39) and Robert Umfraville 8th Earl Angus (age 37) fought.
Pain Tiptoft 1st Baron Tibetot (age 34) was killed. His son John Tiptoft 2nd Baron Tibetot succeeded 2nd Baron Tibetot.
John Montfort 2nd Baron Montfort (age 23) was killed. Peter Montfort 3rd Baron Montfort (age 23) succeeded 3rd Baron Montfort.
Thomas Grey (age 34) undertook a suicidal charge that contributed to the English defeat and subsequently blemished his career.
William Latimer 2nd Baron Latimer of Corby (age 38) was captured.
Michael Poynings (age 44) was killed.
On 06 Dec 1315 [his former wife] Christiana Fitzwalter Baroness Marshal (age 40) died at Hockering, Mitford.
Walter Fitzrobert and Joan D'Engayne Baroness Welles and Ughtred were married. He a great x 2 grandson of King Henry "Curtmantle" II of England.
Kings Wessex: Great x 9 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 10 Grand Son of Maredudd ab Owain King Deheubarth King Powys King Gwynedd
Kings Seisyllwg: Great x 12 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 10 Grand Son of Maredudd ab Owain King Deheubarth King Powys King Gwynedd
Kings England: Great x 6 Grand Son of King Henry I "Beauclerc" England
Kings Scotland: Great x 7 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 16 Grand Son of Louis "Pious" King Aquitaine I King Franks
Kings France: Great x 9 Grand Son of Robert "Pious" II King France
Great x 3 Grandfather: John Fitzgilbert
Great x 2 Grandfather: John Marshal
Great x 4 Grandfather: Walter of Salisbury 2nd Baron Chitterne
Great x 3 Grandmother: Sybil of Salisbury
Great x 4 Grandmother: Sybilla Chaworth Baroness Chitterne
Great x 1 Grandfather: John Marshal
Great x 3 Grandfather: Adam Port
Great x 2 Grandmother: Joan Port
GrandFather: William Marshal
Great x 2 Grandfather: Hubert Rye
Great x 1 Grandmother: Aline Rye
Father: John Marshal 5 x Great Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: Robert Ferrers 2nd Earl of Derby
Great x 3 Grandfather: William Ferrers 3rd Earl of Derby
Great x 4 Grandmother: Margaret Peverell Countess Derby
Great x 2 Grandfather: William Ferrers 4th Earl of Derby
Great x 4 Grandfather: William de Braose 3rd Baron Bramber
Great x 3 Grandmother: Sybil de Braose Countess Derby
Great x 4 Grandmother: Bertha Gloucester Baroness Bramber
Great x 1 Grandfather: William Ferrers 5th Earl of Derby 3 x Great Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: Ranulf Gernon 4th Earl Chester
Great x 3 Grandfather: Hugh de Kevelioc Gernon 5th Earl Chester Great Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandmother: Matilda Fitzrobert Countess Chester Grand Daughter of King Henry I "Beauclerc" England
Great x 2 Grandmother: Agnes Gernon Countess Derby 2 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: Simon "Chauve" Montfort 4th Count Évreux
Great x 3 Grandmother: Bertrade Montfort Countess Chester
Great x 4 Grandmother: Mathilde Unknown Countess Évreux
GrandMother: Elizabeth Ferrers 4 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: Robert Quincy
Great x 3 Grandfather: Saer Quincy 1st Earl Winchester
Great x 2 Grandfather: Roger de Quincy 2nd Earl Winchester
Great x 4 Grandfather: Robert Beaumont 3rd Earl of Leicester
Great x 3 Grandmother: Margaret Beaumont Countess Winchester
Great x 4 Grandmother: Petronilla Grandesmil Countess Leicester
Great x 1 Grandmother: Margaret Quincy Countess Derby 5 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 3 Grandfather: Alan Lord of Galloway
Great x 2 Grandmother: Helen Galloway Countess Winchester 4 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: David Dunkeld 8th Earl Huntingdon
Great x 3 Grandmother: Margaret Dunkeld 3 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandmother: Matilda Gernon Countess Huntingdon 2 x Great Grand Daughter of King Henry I "Beauclerc" England
William Marshal 1st Baron Marshal 6 x Great Grand Son of King Henry I "Beauclerc" England
Mother: Hawise Unknown