Isabella of Gloucester and Hertford
Isabella de Clare (2 November 1226 – 10 July 1264) was the daughter of Gilbert de Clare, 4th Earl of Hertford and 5th Earl of Gloucester and Isabel Marshal.
She is also known as "Isabel de Clare", but this is however, the name of many women in her family.
Robert Payne (Gloucester MP)
Robert Payne( c. 1630 – 1713), of Gloucester, was an English politician.
He was the eldest son of Robert Payne of Gloucester, a clothier.
He was made a freeman of Gloucester in 1653, an alderman in 1679 and made mayor for 1692 and 1703.
He was a Member( MP) of the Parliament of England for Gloucester from 1695 to 1698.
He married Anna, the daughter of William Capel of Gloucester, and had 5 sons and 2 daughters.
Anne of Gloucester
Anne of Gloucester, Countess of Stafford (30 April 1383 – 16 October 1438) was the eldest daughter of Thomas of Woodstock, Duke of Gloucester, and Eleanor de Bohun.
Miles of Gloucester, 1st Earl of Hereford
Miles FitzWalter of Gloucester, 1st Earl of Hereford, Lord of Brecknock( died 24 December 1143) was High Sheriff of Gloucester and Constable of England.
Mabel FitzRobert, Countess of Gloucester
Mabel FitzRobert, Countess of Gloucester( c. 1100 – 29 September 1157) was an Anglo- Norman noblewoman, and a wealthy heiress who brought the lordship of Gloucester, among other prestigious honours to her husband, Robert, 1st Earl of Gloucester upon their marriage.
He was the illegitimate son of King Henry I of England.
Her father was Robert Fitzhamon, Lord of Gloucester and Glamorgan.
As she was the eldest daughter of four, and her younger sisters had become nuns, Mabel inherited all of his honours and properties upon his death in 1107.
As Countess of Gloucester, Mabel was significant politically and she exercised an important administrative role in the lordship.
William Montagu Douglas Scott, 6th Duke of Buccleuch
William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch and 8th Duke of Queensberry( 9 September 1831 – 5 November 1914) was a Scottish Member of Parliament and peer.
He was the paternal grandfather of Princess Alice, Duchess of Gloucester, and the maternal great- grandfather of Prince William of Gloucester and Prince Richard, Duke of Gloucester.
He was a paternal great- great- grandfather to Sarah, Duchess of York.
John Jones (MP for Gloucester)
John Jones (died 1 June 1630) was an English politician who sat in the House of Commons from 1604 to 1611.
Jones was the son of Hugh Joanes of Milton, Gloucestershire.
From before 1579, he was the Principal Registrar of the diocese of Gloucester covering the time of eight Bishops of Gloucester from Richard Cheyney to Godfrey Goodman.
He was an alderman of Gloucester and was Sheriff of Gloucester in 1587 and 1592 and Mayor of Gloucester in 1597.
He was also J.P. for the City.
In 1604, he was elected Member of Parliament for Gloucester.
He was mayor of Gloucester again in 1618 and 1625.
Jones died in 1630 and was buried in Gloucester Cathedral.
Jones married firstly Joane Huntley widow born as Weale.
She died on 18 January 1595 and he married secondly Elizabeth Gilbert daughter of J. Gilbert of Clare, Suffolk.
Isabel Marshal
Isabel Marshal (9 October 1200 – 17 January 1240) was a medieval English countess.
She was the wife of both Gilbert de Clare, 4th Earl of Hertford and 5th Earl of Gloucester and Richard, 1st Earl of Cornwall (son of King John of England).
With the former, she was a great grandmother of King Robert the Bruce of Scotland.
Anthony Robinson (MP)
Anthony Robinson( born 1592) was an English politician who sat in the House of Commons in 1621 and 1624.
Robinson was the son of Robert Robinson of Gloucester.
He matriculated at St Alban Hall, Oxford on 14 October 1597, aged 15, and in 1601 entered the Middle Temple to study law.
He was sheriff of Gloucester in 1616.
In 1621, he was elected Member of Parliament for Gloucester and re-elected MP in 1624.
In 1626 he was made an alderman for life and in 1629 he was made Mayor of Gloucester for a year.
He married Hester, daughter of John Browne, mercer of Gloucester, and had 6 sons and 3 daughters.
William Fitz Robert, 2nd Earl of Gloucester
William Fitz Robert, 2nd Earl of Gloucester( 23 November 1116 – 23 November 1183) was the son and heir of Sir Robert de Caen, 1st Earl of Gloucester, and Mabel FitzRobert of Gloucester, daughter of Robert Fitzhamon and nephew of Empress Matilda.

Question: When did Isabella Of Gloucester And Hertford's mother die?
Answer: 17 January 1240