Family Group Sheet
Family Group Sheet
NameThomas de BEAUCHAMP 11th Earl of Warwick
SpouseKatherine MORTIMER
MotherJoan DE GENEVILLE (1286-1356)
Notes for Thomas de BEAUCHAMP 11th Earl of Warwick
Thomas de Beauchamp, 11th Earl of Warwick, KG (c.14 February 1313 – 13 November 1369) was an English nobleman and military commander during the Hundred Years' War. In 1348 he became one of the founders and the third Knight of the Order of the Garter.

Early life

He was born at Warwick Castle, Warwickshire, England to Guy de Beauchamp, 10th Earl of Warwick and Alice de Toeni.

He served in Scotland frequently during the 1330s, being captain of the army against the Scots in 1337.

He was hereditary High Sheriff of Worcestershire from 1333 until his death (in 1369). In 1344 he was also made High Sheriff of Warwickshire and Leicestershire for life.

Victor at Crécy and Poitiers

Warwick was Marshall of England from 1343/4 until 1369, and was one of the commanders at the great English victories at Crécy and Poitiers.

Thomas Beauchamp fought in all the French wars of King Edward III: commanded at the Battle of Crecy: was guardian of the sixteen-year-old Black Prince: fought at Poitiers in 1356 and at the Siege of Calais (1346). He began the rebuilding of the Collegiate Church of Saint Mary, in Warwick out of money received from the ransom of a French Archbishop. He died of plague in Calais on 13 November 1369.

Marriage and children

He married Katherine Mortimer, daughter of Roger Mortimer, 1st Earl of March. They had five sons and ten daughters

Richard, 12th Earl of Warwick b. 16 Mar 1338 d. 8 Aug 1401, who married Margaret Ferrers and had descendants. Richard succeeded his father as Earl and inherited most of his property
Guy (d. 28 April 1360). He had two daughters who by entail were excluded from their grandfather's inheritance: Elizabeth (d. c.1369), and Katherine, who became a nun
Thomas (1337x9–1401)
Reinbrun, (d. 1361); he was named for a character in Guy of Warwick
William (c.1343–1411), who inherited the honour of Abergavenny. Married Joan FitzAlan.
Roger (d. 1361)
Maud (d. 1403), who married Roger de Clifford, 5th Baron de Clifford
Philippa de Beauchamp who married Hugh de Stafford, 2nd Earl of Stafford
Alice (d. 1383), who married first John Beauchamp, 3rd Baron Beauchamp and then Sir Matthew Gournay
Joan, who married Ralph Basset, 4th Baron Basset de Drayton
Isabell (d. 1416) who married first John le Strange, 5th Baron Strange, and then William de Ufford, 2nd Earl of Suffolk. After the latter's death she became a nun.
Margaret, who married Guy de Montfort and after his death became a nun.
Elizabeth, married Thomas de Ufford KG
Anne, married Walter de Cokesey
Katherine, became a nun at Shouldham
Catherine Montacute, Countess of Salisbury was not his daughter, although she is presented as such in William Painter's Palace of Pleasure and in the Elizabethan play, Edward III that may be by William Shakespeare.
Notes for Katherine MORTIMER
Katherine Mortimer, Countess of Warwick (1314 – 4 August 1369) was the wife of Thomas de Beauchamp, 11th Earl of Warwick KG, an English peer, and military commander during the Hundred Years War. She was a daughter and co-heiress of Roger Mortimer, 1st Earl of March and Joan de Geneville, Baroness Geneville.

Sometime before 1355, she became an important figure at the royal court of King Edward III.

Family and lineage

Katherine Mortimer was born at Ludlow Castle, Shropshire, England, in 1314, one of the twelve children and a co-heiress of Roger Mortimer, 1st Earl of March and Joan de Geneville, Baroness Geneville. Her paternal grandparents were Edmund Mortimer, 2nd Baron Mortimer and Margaret de Fiennes, and her maternal grandparents were Sir Piers de Geneville, of Trim Castle and Ludlow, and Jeanne of Lusignan.

Her father was de facto ruler of England together with his mistress Isabella of France, Queen consort of King Edward II, until his eventual capture and execution by the orders of King Edward III, eldest son of Isabella and King Edward II. The latter had been deposed in November 1326, and afterwards cruelly murdered by assassins acting under the orders of Mortimer and Queen Isabella. Katherine was sixteen years old when her father was hanged, drawn and quartered at Tyburn, London on 29 November 1330.


On 19 April 1319, when she was about five years old, Katherine married Thomas de Beauchamp, 11th Earl of Warwick, eldest son of Guy de Beauchamp, 10th Earl of Warwick and Alice de Toeni.[1] Their marriage required a Papal dispensation as they were related within the prohibited third and fourth degrees. Beauchamp had succeeded to the earldom at the age of two, therefore Katherine was styled Countess of Warwick from the time of her marriage until her death. The marriage had been arranged in July 1318 in order to settle a quarrel between the two families over the lordship of Elfael, which was thus given to Katherine as her marriage portion.[2] For the term of his minority, Beauchamp's custody had been granted to Katherine's father, Roger Mortimer.[3]

Katherine later became an important personage at the court of King Edward III. As a sign of royal favour she was chosen to stand as one of the godmothers, along with Queen Philippa of Hainault, to the latter's granddaughter, Philippa, Countess of Ulster in 1355. This honour bestowed on Katherine is described by 19th century author Agnes Strickland according to the Friar's Genealogy: "Her [Philippa, Countess of Ulster] godmother also was of Warwick Countess, a lady likewise of great worthiness".[4]


Katherine and Beauchamp together had fifteen children
Last Modified 4 Aug 2013Created 28 Jan 2018 using Reunion for Macintosh