|Husband:||Thomas + of BEAUCHAMP (1314-1369)|
|Wife:||Catherine +* of MORTIMER (1314-1369)|
|Children:||Philippa + of BEAUCHAMP (c. 1334-1386)|
|Maud + of BEAUCHAMP (1335-1402)|
|Guy of BEAUCHAMP (c. 1337-1360)|
|Thomas of BEAUCHAMP (1339- )|
|Reinbrun of BEAUCHAMP (c. 1341- )|
|William of BEAUCHAMP (1343- )|
|Roger of BEAUCHAMP (c. 1345-1361)|
|Alice of BEAUCHAMP (c. 1349-1383)|
|Joan of BEAUCHAMP (c. 1351- )|
|Isabella of BEAUCHAMP (c. 1353-1416)|
|Margaret of BEAUCHAMP (c. 1355- )|
|Elizabeth of BEAUCHAMP (c. 1357- )|
|Anne of BEAUCHAMP (c. 1359- )|
|Juliana of BEAUCHAMP (c. 1361- )|
|Katherine of BEAUCHAMP (c. 1363- )|
|Name:||Thomas + of BEAUCHAMP|
|Father:||Guy + of BEAUCHAMP (1272-1315)|
|Mother:||Alice + of TOENI (1284-1324)|
|Birth||14 Feb 1314||Warwick Castle, Warwick. Warwickshire, England|
|Occupation||High Sheriff of Worcestershire|
|Title||frm 1333 to 1369 (age 18-55)||High Sheriff of Worcestershire|
|Death||13 Nov 1369 (age 55)||Calais, Pas-de-Calais, France|
|Name:||Catherine +* of MORTIMER|
|Father:||Roger + *of MORTIMER (1287-1330)|
|Mother:||Joan +* of GENEVILLE (1285-1356)|
|Birth||1314||Ludlow Castle, Shropshire, England|
|Occupation||Countess of Warwick|
|Death||4 Aug 1369 (age 54-55)|
|Burial||St. Mary's Church, Warwick, Warwickshire|
|Name:||Philippa + of BEAUCHAMP|
|Spouse:||Hugh * of STAFFORD (1334-1386)|
|Birth||1334 (est)||Warwick, Warwickshire, England|
|Death||6 Apr 1386 (age 51-52)||Stone, Buckinghamshire, England|
|Name:||Maud + of BEAUCHAMP|
|Spouse:||Roger + of CLIFFORD (1333-1389)|
|Birth||1335||Warwick, Warwickshire, England|
|Death||Jan 1402 (age 66-67)|
|Burial||Warwick, Warwickshire, England|
|Name:||Guy of BEAUCHAMP|
|Death||28 Apr 1360 (age 22-23)|
|Name:||Thomas of BEAUCHAMP|
|Birth||16 Mar 1339|
|Name:||Reinbrun of BEAUCHAMP|
|Name:||William of BEAUCHAMP|
|Name:||Roger of BEAUCHAMP|
|Death||1361 (age 15-16)|
|Name:||Alice of BEAUCHAMP|
|Death||1383 (age 33-34)|
|Name:||Joan of BEAUCHAMP|
|Name:||Isabella of BEAUCHAMP|
|Death||29 Sep 1416 (age 62-63)|
|Name:||Margaret of BEAUCHAMP|
|Name:||Elizabeth of BEAUCHAMP|
|Name:||Anne of BEAUCHAMP|
|Name:||Juliana of BEAUCHAMP|
|Name:||Katherine of BEAUCHAMP|
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
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
Seal of Thomas de Beauchamp, 1344Warwick 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 13th November 1369.
 Marriage and children
Thomas de Beauchamp & Katherine Mortimer effigies in Warwick St. Mary’s churchHe married Katherine Mortimer, daughter of Roger Mortimer, 1st Earl of March. They had five sons and ten daughters:
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) who succeeded his father as earl and inherited most of his property
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
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.
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.
MarriageOn 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. 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. For the term of his minority, Beauchamp's custody had been granted to Katherine's father, Roger Mortimer.
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".
IssueKatherine and Beauchamp together had fifteen children:
Guy de Beauchamp (died 28 April 1360), married Philippa de Ferrers, daughter of Henry de Ferrers, 2nd Lord Ferrers of Groby and Isabel de Verdun, by whom he had two daughters.
Thomas de Beauchamp, 12th Earl of Warwick (16 March 1339- 1401), married Margaret Ferrers, daughter of William Ferrers, 3rd Lord of Groby and Margaret de Ufford, by whom he had issue, including Richard de Beauchamp, 13th Earl of Warwick.
Reinbrun de Beauchamp
William de Beauchamp, 1st Baron Bergavenny (c. 1343- 8 May 1411), on 23 July 1392, married Lady Joan FitzAlan, daughter of Richard Fitzalan, 11th Earl of Arundel and Elizabeth de Bohun, by whom he had a son Richard de Beauchamp, 1st Earl of Worcester, and a daughter, Joan de Beauchamp, 4th Countess of Ormond. Queen consort Anne Boleyn was a notable descendant of the latter.
Roger de Beauchamp (died 1361)
Maud de Beauchamp (died 1403), married Roger de Clifford, 5th Baron Clifford, by whom she had issue, including Thomas de Clifford, 6th Baron Clifford.
Philippa de Beauchamp, married Hugh de Stafford, 2nd Earl of Stafford, by whom she had nine children.
Alice Beauchamp (died 1383), married firstly John Beauchamp, 3rd Baron Beauchamp of Somerset, and secondly Sir William Gournay. She died childless.
Joan de Beauchamp, married Ralph Basset, 3rd Baron Basset of Drayton. She died childless.
Isabella de Beauchamp (died 29 September 1416), married firstly John le Strange, 5th Baron Strange, and secondly, William de Ufford, 2nd Earl of Suffolk. Upon the latter's death, she became a nun. She died childless.
Margaret de Beauchamp, married Guy de Montfort, and after his death, she became a nun. She died childless.
Elizabeth de Beauchamp, married Thomas de Ufford KG,
Anne de Beauchamp, married Walter de Cokesey.
Juliana de Beauchamp
Katherine de Beauchamp, became a nun at Shouldham.
Death and effigyKatherine Mortimer died on 4 August 1369 at the age of about fifty-five. Two years before her death, in 1367, Katherine was a legatee in the will of her sister Agnes de Hastings, Countess of Pembroke. Katherine was buried in St. Mary's Church, Warwick, Warwickshire. She lies alongside her husband, who died three months after her of the Black Death. Their tomb with well-preserved, alabaster effigies can be seen in the centre of the quire. Katherine is depicted wearing a frilled veil with a honeycomb pattern and she is holding hands with Beauchamp. The sides of the tomb chest are decorated with figures of mourners, both male and female.