Bertha of Hereford, also known as Bertha de Pitres (born c.1130), was the daughter of Miles de Gloucester, 1st Earl of Hereford, and a wealthy heiress. She was the wife of William de Braose, Third Lord of Bramber to whom she brought many castles and Lordships, including Brecknock, Abergavenny, and Hay.

Bertha was born in England in about 1130. She was the second daughter[1] of Miles of Gloucester, 1st Earl of Hereford (1097- 24 December 1143) and Sibyl of Neufmarche. She had two sisters, Margaret of Gloucester, who married Humphrey II de Bohun, by whom she had issue, and Lucy of Gloucester, who married Herbert FitzHerbert of Winchester, by whom she had issue. Her five brothers, included Roger Fitzmiles, 2nd Earl of Hereford, Walter de Hereford, Henry Fitzmiles, William de Hereford, and Mahel de Hereford.

Her paternal grandparents were Walter FitzRoger de Pitres, Sheriff of Gloucester and Bertha de Balun of Bateden, a descendant of Hamelin de Balun, and her maternal grandparents were Bernard de Neufmarche, Lord of Brecon, and Nesta ferch Osbern. The latter was a daughter of Osbern FitzRichard of Richard's Castle, and Nesta ferch Gruffydd. Bertha was a direct descendant, in the maternal line, of Gruffydd ap Llywelyn (1007- 5 August 1063) and Edith (Aldgyth), daughter of Elfgar, Earl of Mercia.

Her father Miles served as Constable to King Stephen of England. He later served in the same capacity to Empress Matilda after he'd transferred his allegiance. In 1141, she made him Earl of Hereford in gratitude for his loyalty. On 24 December 1143, he was killed whilst on a hunting expedition.

In 1150, she married William de Braose, 3rd Lord of Bramber (1112- 1192), son of Philip de Braose, 2nd Lord of Bramber and Aenor, daughter of Judael of Totnes. William and Bertha had three daughters and two sons, including William de Braose, 4th Lord of Bramber.

In 1173, her brothers all having died without issue, she brought the Lordships and castles of Brecknock and Abergavenny, to her husband. Hay Castle had already passed to her from her mother, Sibyl of Neufmarche in 1165, whence it became part of the de Braose holdings.

In 1174, her husband became Sheriff of Hereford.

Her children include:

William de Braose, 4th Lord of Bramber, (1144/1153- 11 August 1211, Corbeil), married Maud de St. Valery, daughter of Bernard de St. Valery, by whom he had 16 children.

Roger de Braose

Bertha de Braose (born 1151), married c.1175, Walter de Beauchamp (died 1235), son of William de Beauchamp and Joan de Walerie, by whom she had issue, including Walcherine de Beauchamp who married Joane de Mortimer.

Sibylla de Braose (died after 5 February 1227), married William de Ferrers, 3rd Earl of Derby (1136- 21 October 1190 at Acre on crusade), son of Robert de Ferrers, 2nd Earl of Derby and Margaret Peverel, by whom she had issue.

Maud de Braose, married John de Brompton, by whom she had issue.

Bertha died on an unknown date. She is the ancestress of the families de Braose, de Beauchamp, and de Ferrers.

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BERTHE . The Historia fundationis cum fundatoris genealogia of the priory of Abergavenny names “Margaretam, Bertam et Luciam” as the three daughters of “Milonem” & his wife, adding that Berthe married “Philippo de Brusa domino de Duelth“ (naming their descendants) and inherited “tota terra Breconiæ, Wenciæ superioris et Gower”. A manuscript narrating the history of Brecknock priory records that “Berte” married “Willame de Brewes”, and also lists her descendants. "Willielmus de Braiosa" confirmed the donations to the church of Saints Gervais et Protais de Briouze by "Philippus de Braiosa pater eiusdem Willielmi", by undated charter, witnessed by "Bertam conjugem meam, Philippum fratrem meum". m (before [1140]) WILLIAM de Briouse, son of PHILIPPE de Briouse] & his wife Eleanor of Barnstaple (-[1175]). He was Lord of Abergavenny and Brecon from [1173] by grant of his brother-in-law Mahel FitzMiles.

http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL.htm#WiliamWarenneSurreydied1088

5. BERTHA OF HEREFORD, m. abt 1150, William de Braose.

Excert from: Ancestral Roots of Certain American Colonists Who Came to America Before 1700. Author: Weis, Frederick Lewis Date of Publication: 2004

Chirton Manor

At the time of the Domesday Survey Durand of Gloucester had land at Chirton held T.R.E. by Almar. As described elsewhere the Chirton estate passed to Durand's great-nephew Miles (cr. earl of Hereford 1141 and d. 1143). Miles's eventual coheirs were his three daughters Margaret, who married Sir Humphrey de Bohun, Bertha, wife of William de Breuse, and Lucy, wife of Herbert FitzHerbert. Twothirds of the Chirton lands were allotted to Margaret and a third to Lucy.
The third of Durand's Domesday holding which was allotted to Lucy (d. c. 1217), wife of Herbert FitzHerbert, passed to her son Peter (d. c. 1235).

A History of the County of Wiltshire: Volume 10