Paternal Family Tree: Marshall
Maternal Family Tree: Aoife ni Diarmait Macmurrough Countess Pembroke and Buckingham 1145-1188
In August 1189 William Marshal 1st Earl Pembroke [aged 43] and Isabel Clare Countess Pembroke [aged 17] were married at Temple Church, London [Map]. The title Earl Pembroke (1C 1138) was not included in the settlement since it had been rescinded as a consequence of Isabel's father having supported King Stephen. The difference in their ages was 26 years. She the daughter of Richard "Strongbow" Clare 2nd Earl Pembroke and Aoife ni Diarmait Macmurrough Countess Pembroke and Buckingham.
In 1190 William "The Younger" Marshal 2nd Earl Pembroke was born to William Marshal 1st Earl Pembroke [aged 44] and Isabel Clare Countess Pembroke [aged 18].
In 1199 [his father] William Marshal 1st Earl Pembroke [aged 53] was created 1st Earl Pembroke.
On 7th May 1202 Hamelin Warenne Earl of Surrey [aged 73] died. His son [his future brother-in-law] William succeeded 5th Earl Surrey and inherited his estates including Conisbrough Castle [Map]. He undertook further building work including the Great Hall and service buildings in the Inner Bailey. [his sister] Maud Marshal Countess Norfolk and Surrey [aged 8] by marriage Countess Surrey.
Around December 1206 [his brother-in-law] Hugh Bigod 3rd Earl Norfolk [aged 24] and [his sister] Maud Marshal Countess Norfolk and Surrey [aged 12] were married. She the daughter of [his father] William Marshal 1st Earl Pembroke [aged 60] and [his mother] Isabel Clare Countess Pembroke [aged 34]. He the son of Roger Bigod 2nd Earl Norfolk [aged 62] and Ida Tosny Countess Norfolk [aged 50]. They were third cousins.
After 1208 [his brother] Anselm Marshal 6th Earl Pembroke and [his sister-in-law] Maud Bohun Countess Pembroke and Winchester were married. She by marriage Countess Pembroke. She the daughter of Humphrey Bohun 2nd Earl Hereford 1st Earl Essex [aged 4] and Matilda Lusignan Countess Hereford and Essex. He the son of [his father] William Marshal 1st Earl Pembroke [aged 62] and [his mother] Isabel Clare Countess Pembroke [aged 36]. They were half third cousin once removed.
In September 1214 William "The Younger" Marshal 2nd Earl Pembroke [aged 24] and Alice Béthune Countess Pembroke were married. She by marriage Countess Pembroke. She the daughter of Baldwin Béthune Count Aumale and Hawise Blois 2nd Countess Albemarle and Essex. He the son of William Marshal 1st Earl Pembroke [aged 68] and Isabel Clare Countess Pembroke [aged 42].
Before 1215 [his wife] Alice Béthune Countess Pembroke was murdered.
On 15th June 1215 King John of England [aged 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 added their seals to the document as surety included:
Roger Bigod 2nd Earl Norfolk [aged 71]
his son [his brother-in-law] Hugh Bigod 3rd Earl Norfolk [aged 33]
Henry Bohun 1st Earl Hereford [aged 39]
Richard Clare 3rd Earl Hertford [aged 62]
his son Gilbert Clare 5th Earl Gloucester 4th Earl Hertford [aged 35]
William "The Younger" Marshal 2nd Earl Pembroke [aged 25]
William Mowbray 6th Baron Thirsk [aged 42]
Saer Quincy 1st Earl Winchester [aged 45]
Robert Ros [aged 43], Richard Percy 5th Baron Percy Topcliffe [aged 45]
Robert de Vere 3rd Earl of Oxford [aged 50]
Eustace Vesci [aged 46]
John Fitzrobert 3rd Baron Warkworth [aged 25]
John Lacy Earl Lincoln [aged 23].
William de Albini [aged 64], Geoffrey Mandeville 2nd Earl Essex [aged 24]
William Forz 3rd Earl Albemarle
William Hardell
William Huntingfield
William Llanvallei
William Malet 1st Baron Curry Mallet
Roger Montbegon, Richard Montfichet
Geoffrey Saye [aged 60] signed as surety the Magna Carta.
Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln [aged 45] witnessed.
On 20th May 1217 [his father] William Marshal 1st Earl Pembroke [aged 71] and Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln [aged 47] fought at Lincoln, Lincolnshire [Map] during the Second Battle aka Lincoln's Fair.
Rebels William Mowbray 6th Baron Thirsk [aged 44] and William Ros [aged 17] were captured. William de Albini [aged 66] fought for the rebels. Thomas Chateaudun I Count Perche [aged 22] died fighting for the rebels.
Bishop Peter de Roches led a division of the royal army and earned some distinction by his valour.
In or before 1218 [his brother-in-law] Gilbert Clare 5th Earl Gloucester 4th Earl Hertford [aged 37] and [his sister] Isabel Marshal Countess Cornwall, Gloucester and Hertford [aged 17] were married. She by marriage Countess Gloucester, Countess Hertford. The difference in their ages was 20 years. She the daughter of [his father] William Marshal 1st Earl Pembroke [aged 71] and [his mother] Isabel Clare Countess Pembroke [aged 45]. He the son of Richard Clare 3rd Earl Hertford and Amice Fitzrobert Countess Hertford. They were third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England.
On 14th May 1219 [his father] William Marshal 1st Earl Pembroke [aged 73] died. His son William [aged 29] succeeded 2nd Earl Pembroke.
Chronicle of a Bourgeois of Valenciennes
Récits d’un bourgeois de Valenciennes aka The Chronicle of a Bourgeois of Valenciennes is a vivid 14th-century vernacular chronicle written by an anonymous urban chronicler from Valenciennes in the County of Hainaut. It survives in a manuscript that describes local and regional history from about 1253 to 1366, blending chronology, narrative episodes, and eyewitness-style accounts of political, military, and social events in medieval France, Flanders, and the Low Countries. The work begins with a chronological framework of events affecting Valenciennes and its region under rulers such as King Philip VI of France and the shifting allegiances of local nobility. It includes accounts of conflicts, sieges, diplomatic manoeuvres, and the impact of broader struggles like the Hundred Years’ War on urban life in Hainaut. Written from the perspective of a burgher (bourgeois) rather than a monastery or royal court, the chronicle offers a rare lay viewpoint on high politics and warfare, reflecting how merchants, townspeople, and civic institutions experienced the turbulence of the 13th and 14th centuries. Its narrative style combines straightforward reporting of events with moral and civic observations, making it a valuable source for readers interested in medieval urban society, regional politics, and the lived experience of war and governance in pre-modern Europe.
Available at Amazon in eBook and Paperback format.
In 1220 [his mother] Isabel Clare Countess Pembroke [aged 48] died. She was buried in the choir of Tintern Abbey [Map].
History of the Dukes of Normandy by Anonymous of Bethune. After the king’s coronation, on the day [7th July 1220] after the octave of the two blessed martyrs and apostles Saint Peter and Saint Paul, Master Stephen Langton [aged 70], who was Archbishop of Canterbury, had the body of my lord Saint Thomas, the blessed martyr, raised into a shrine. It was found completely whole, and his wounds were found still quite fresh, and a very sweet fragrance came forth from the tomb. The history says that he was born on a Tuesday, and on a Tuesday he was consecrated archbishop, and on a Tuesday he received martyrdom; and for this reason, by counsel, he was raised into the shrine on a Tuesday. At this raising there was the [his future brother-in-law] king [aged 12], and nearly all the high barons of England; and there was the legate, who was called Pandulf. I had forgotten to tell you about the legate Guala [aged 70], who had left England long before William Marshal died, and had gone back to Rome. And this Pandulf, who brought the Church’s settlement to England in the time of King John, was legate in England at the time when the holy body was raised into the shrine. From overseas came Queen Berengaria [aged 55], who had been the wife of King Richard and who held the city of Le Mans in dower. There also came the Archbishop of Reims, with three bishops of his archiepiscopal province: the Bishop of Amiens, the Bishop of Tournai, and one other. There also came Count Robert of Dreux and Guy de Châtillon [aged 24], who was the son of Walter, Count of Saint-Pol, and many other great men of France. The barons of England performed a great courtesy, for they had their ban proclaimed a long time before the holy body was to be raised into the shrine: that no Englishman should lodge in the city, because they wished those who came from other lands to be lodged there. Because of this proclamation all the high barons of England had to lodge outside the city, except only William Marshal [the Younger] [aged 30]. He lodged in the city in order to guard the foreign guests, so that no harm should happen to them. The Archbishop of Reims [William of Joinville] sang vespers on the Monday evening; and the next day, when the holy body was raised into the shrine, he sang the high mass. The legate and the Archbishop of Canterbury arranged for him to do this because he was one of the highest-ranking prelates in the world, and they wished to honour him greatly. This was in the year of the incarnation of our Lord Jesus Christ 1220, in the month of July, when the body of my lord Saint Thomas of Canterbury, the blessed martyr, was raised into the shrine. There were present one legate from Rome, two archbishops, twenty-five bishops, and many other high-ranking clerics.
En apriès le couronnement Je roi, lendemain des octaves les deus beneois martyrs et apostoles saint Pierre et saint Pol, fist maistres Estievenes de Languetonne, qui archevesques estoit de Cantorbire, le cors mon segneur saint Thumas, le beneoit martyr, lever én fiertre ; si fu trouvés toz entirs, et ses plaies furent trovées toutes freskes, et moult boine odours issi de la fosse. Che dist l’estore que il fu nés par is mardi, et par .i. mardi fu sacrés à arcevesque; et par mardi rechut martyre : et por chou fu-il , par consel, par .i. mardi levés én fiertre. À che levement fu li wois et priès que tout li haut baron d’Engletierre; si fu li legaus, qui Pandoufles apielés fu. Jou vous avoie oublié à dire dou legaut Galon, ki pârtis s’estoit d’Engletierre très devant chou que Guillaumes li mareschaus morust, et s'en estoit alés vers Roume. Et chil Pandoufles, qui la crestienté aporta en Engletierreau tans le roi Jehan, estoit legaus d’Engletierre en cel point ke li cors sai[n]s fu levés en fiertre. D'outremer à vint la roine Berengiere , qui fu feme au roi Richart et ki ot en douaire la cité del Mans. Si i vint li archevesques de Rains, et troi evesque de s'archeves chié o lui : chil d’Amiens et chil de Tournai et encore uns autres. Si i vint li cuens Robiers de Dreues et Guis de Castéllon, ki fu fils Gautier le conte de Saint-Pol , et moult autre haut home de France. Li baron , d’Engletierre firent une grant courtesie ; car il fisent [c]rier lor bans granttans devant chou que deust le cors saint lever en fiertre , que nus Englois ne se herbregast en la ville, por chou k’il voloient que cil qui venroient d’autres terres là s’i hierbregassent. Par cel ban couvint toz les haus barons d’Engletierre logier defors la ville, fors seulement Guillaumes le mareschal : chil se herbrega ea ville pour les estranges gens garder, pour chou que riens ne lor mesesteust. Li archevesques de Rains canta le lundi au soir les viespres; et lendemain, quant li cors sains fu levés en flertre, canta-il la grant messe. Che li fisent faire entre le legaut et l'archevesque de Cantorbire, por chou que il estoit uns des plus haus artiers del monde : si le varrent moult hopnerer Che fu en l’an de l’incarnation nostre segneur Jhesu-Crist .m. et .ijc. et xx. ans, el mois de jule, que li cors mon segneur saint Thumas de Chantorbire, le beneoit martyr, fu levés en fiertre; si i ot .i. legaut de Rome et .ij. archevesques et .xxv. eveusques et molt d’autres haus clers.
In 1221 Roger Bigod 2nd Earl Norfolk [aged 77] died. His son [his brother-in-law] Hugh [aged 39] succeeded 3rd Earl Norfolk. [his sister] Maud Marshal Countess Norfolk and Surrey [aged 27] by marriage Countess Norfolk.
Around 1222 [his brother] Richard Marshal 3rd Earl Pembroke [aged 31] and [his sister-in-law] Gervase Dinant Countess Pembroke were married. He the son of [his father] William Marshal 1st Earl Pembroke and [his mother] Isabel Clare Countess Pembroke.
On 23rd April 1224 William "The Younger" Marshal 2nd Earl Pembroke [aged 34] and Eleanor Plantagenet Countess Pembroke and Leicester [aged 9] were married. She by marriage Countess Pembroke. The difference in their ages was 25 years. She the daughter of King John of England and Isabella of Angoulême Queen Consort England [aged 36]. He the son of William Marshal 1st Earl Pembroke and Isabel Clare Countess Pembroke. They were fifth cousins.
On 13th October 1225 [his brother-in-law] William Warenne 5th Earl of Surrey and [his sister] Maud Marshal Countess Norfolk and Surrey [aged 31] were married. She the daughter of [his father] William Marshal 1st Earl Pembroke and [his mother] Isabel Clare Countess Pembroke. He the son of Hamelin Warenne Earl of Surrey and Isabella Warenne Countess Boulogne 4th Countess of Surrey. They were half second cousin once removed.
On 30th March 1231 [his brother-in-law] Richard of Cornwall 1st Earl Cornwall [aged 22] and [his sister] Isabel Marshal Countess Cornwall, Gloucester and Hertford [aged 30] were married at Fawley, Lambourn. She by marriage Countess Cornwall. She the daughter of [his father] William Marshal 1st Earl Pembroke and [his mother] Isabel Clare Countess Pembroke. He the son of King John of England and [his mother-in-law] Isabella of Angoulême Queen Consort England [aged 43]. They were fifth cousins.
In April 1231 Hawise Gernon 2nd Countess Lincoln [aged 51] succeeded 2nd Countess Lincoln. Robert Quincy Earl Lincoln by marriage Earl Lincoln. She was gifted the title by her childless brother Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln [aged 61] by agreement with [his brother-in-law] King Henry III of England [aged 23].
On 6th April 1231 William "The Younger" Marshal 2nd Earl Pembroke [aged 41] died. His brother Richard [aged 40] succeeded 3rd Earl Pembroke. Gervase Dinant Countess Pembroke by marriage Countess Pembroke.
In 1238 Simon de Montfort 6th Earl of Leicester 1st Earl Chester [aged 30] and [his former wife] Eleanor Plantagenet Countess Pembroke and Leicester [aged 23] were married at Westminster Palace [Map]. She by marriage Countess of Leicester. She the daughter of King John of England and [his former mother-in-law] Isabella of Angoulême Queen Consort England [aged 50]. He the son of Simon "Elder" Montfort 5th Earl of Leicester and Alix Montmorency. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England.
On 13th April 1275 [his former wife] Eleanor Plantagenet Countess Pembroke and Leicester [aged 60] died at Montargis Abbey.
Kings France: Great x 6 Grand Son of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 10 Grand Son of Ranulf I Duke Aquitaine
Great x 1 Grandfather: Gilbert Giffard 
Grandfather: John Fitzgilbert
Father: William Marshal 1st Earl Pembroke
Great x 2 Grandfather: Edward of Salisbury 1st Baron Trowbridge 1st Baron Chitterne
Great x 1 Grandfather: Walter of Salisbury 2nd Baron Chitterne
Grandmother: Sybil of Salisbury
Great x 1 Grandmother: Sybilla Chaworth Baroness Chitterne 
William "The Younger" Marshal 2nd Earl Pembroke 6 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Gilbert 2nd Count of Eu 
Great x 3 Grandfather: Richard de Clare
Great x 2 Grandfather: Gilbert de Clare
Great x 4 Grandfather: Walter Giffard 
Great x 3 Grandmother: Rohese Giffard
Great x 4 Grandmother: Ermengarde Flaitel
Great x 1 Grandfather: Gilbert de Clare 1st Earl Pembroke
Great x 3 Grandfather: Hugh Clermont Count of Clermont-en-Beauvaisis
Great x 2 Grandmother: Adeliza Clermont
Grandfather: Richard "Strongbow" Clare 2nd Earl Pembroke 4 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Humphrey "Vielles" Beaumont 
Great x 3 Grandfather: Roger "Bearded" Beaumont
Great x 2 Grandfather: Robert Beaumont 1st Earl of Leicester Count Meulan
Great x 4 Grandfather: Waleran I Count of Meulan
Great x 3 Grandmother: Adeline of Meulan
Great x 1 Grandmother: Isabel Beaumont Countess Pembroke 3 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandfather: Henry I King of the Franks 
Grandson of Hugh I King of the Franks
Great x 3 Grandfather: Hugh "Great" Capet Great Grandson of Hugh I King of the Franks
Great x 4 Grandmother: Anne of Kiev Queen Consort Francia
Great x 2 Grandmother: Elizabeth Capet Countess Leicester, Meulan and Surrey 2 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandfather: Herbert Vermandois IV Count Vermandois 7 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandmother: Adelaide I Countess Vermandois 8 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Adela Valois Countess Blois and Vermandois 
Mother: Isabel Clare Countess Pembroke 5 x Great Granddaughter of Hugh I King of the Franks
Great x 1 Grandfather: Diarmait Macmurrough
Grandmother: Aoife ni Diarmait Macmurrough Countess Pembroke and Buckingham