Alexander Murray, 6th Earl of Dunmore
Alexander Edward Murray, 6th Earl of Dunmore( 1 June 1804 – 15 July 1845) was the son of George Murray, 5th Earl of Dunmore.
On 27 September 1836 in Frankfurt, Germany, he married Lady Catherine Herbert, daughter of the 11th Earl of Pembroke.
They had four children:
Sidney Herbert, 16th Earl of Pembroke
Sidney Herbert, 16th Earl of Pembroke, 13th Earl of Montgomery( 9 January 1906 – 16 March 1969) was a British peer.
Anselm Marshal
Anselm Marshal (died 23 December 1245) was the youngest and last of the five sons of William Marshal.
Had he lived longer, he would have become Earl of Pembroke and Earl Marshal upon the death of his brother Walter on 24 November 1245.
Since he only survived his brother a month, he was never confirmed in the earldom.
He died at Chepstow Castle and was buried in Tintern Abbey.
When William Marshal was composing his will in 1219, he originally intended to allot nothing to his youngest son, Anselm, who was named after William's younger brother.
It has been suspected that he wished for the young Anselm to rise from low rank to high on his own merits as William himself had done as a young knight errant.
His advisors, however, convinced the ailing Marshal to grant Anselm a small piece of land.
Anselm was married to Maud, the daughter of Humphrey de Bohun, Earl of Hereford and Essex.
They had no children and Anselm's estates were divided between his sisters and their heirs:
The earldom of Pembroke lay vacant until 1247, when it was recreated for William de Valence, husband of Joan de Munchensi, heiress of Anselm's sister Joan and her husband Warin de Munchensi.
The remarkable extinction of the male line of the Marshall family was credited to a curse bestowed upon the family in 1218 by Bishop of Ferns, Ailbe Ua Maíl Mhuaidh (died 1223).
Each of the five sons of William Marshal, 1st Earl of Pembroke successively inherited the title, but, as Ua Maíl Mhuaidh predicted, none had children and the male line of the family died out.
Philip Herbert, 7th Earl of Pembroke
Philip Herbert, 7th Earl of Pembroke, 4th Earl of Montgomery KB( 1652/53 – 29 August 1683) was an English nobleman and politician who succeeded to the titles and estates of two earldoms on 8 July 1674 on the death of his brother William Herbert, 6th Earl of Pembroke.
He was a homicidal maniac and convicted murderer, who has been called" the infamous Earl of Pembroke."
Although the murder of the magistrate Sir Edmund Berry Godfrey, which sparked the Popish Plot, has never been solved, a strong body of evidence points to Pembroke as the killer.
William Marshal, 1st Earl of Pembroke
William Marshal, 1st Earl of Pembroke (1146 or 114714 May 1219), also called William the Marshal (Norman French: ', French: '), was an Anglo-Norman soldier and statesman.
He served five English kings – Henry II, his sons the "Young King" Henry, Richard I, John, and John's son Henry III.
Knighted in 1166, he spent his younger years as a knight errant and a successful tournament competitor; Stephen Langton eulogized him as the "best knight that ever lived."
In 1189, he became the "de facto" Earl of Pembroke through his marriage to Isabel de Clare, though the title of earl would not be officially granted until 1199 during the second creation of the .
In 1216, he was appointed protector for the nine-year-old Henry III, and regent of the kingdom.
Before him, his father's family held a hereditary title of Marshal to the king, which by his father's time had become recognized as a chief or master Marshalcy, involving management over other Marshals and functionaries.
William became known as 'the Marshal', although by his time much of the function was delegated to more specialized representatives (as happened with other functions in the King's household).
Because he was an Earl, and also known as the Marshal, the term "Earl Marshal" was commonly used and this later became an established hereditary title in the English Peerage.
All Kings of England, Great Britain and the United Kingdom since James VI
and I have been cognatic descendants of William Marshal through his great-great-grandson Robert the Bruce.
Richard Marshal, 3rd Earl of Pembroke
Richard Marshal, 3rd Earl of Pembroke( 119116 April 1234), was the son of William Marshal, 1st Earl of Pembroke and brother of William Marshal, 2nd Earl of Pembroke, whom he succeeded to the Earldom of Pembroke and Lord Marshal of England upon his brother's death on 6 April 1231.
Henry Herbert, 9th Earl of Pembroke
Lt.- Gen. Henry Herbert, 9th Earl of Pembroke, 6th Earl of Montgomery( 29 January 16939 January 1749) was an English peer and courtier.
He was the heir and eldest son of Thomas Herbert, 8th Earl of Pembroke( c. 1656 – 1733) and his first wife Margaret Sawyer.
He was styled Lord Herbert from birth until he inherited his father's earldoms of Pembroke and Montgomery in 1733.
Marie de St Pol
Marie de St Pol, Countess of Pembroke( c.1303–1377) was the wife of Aymer de Valence, 2nd Earl of Pembroke( c.1275-1324), and is best known as the foundress of Pembroke College, Cambridge.
Hamilton Boyle, 6th Earl of Cork
Hamilton Boyle, 6th Earl of Cork and 6th Earl of Orrery( 3 February 1729 – 17 January 1764) was the son of John Boyle, 5th Earl of Cork and Lady Henrietta Hamilton.
He inherited the titles of 6th Earl of Cork and Orrery and 3rd Baron Boyle of Marston from his father in 1762.
He served in the Parliament of Great Britain as Member of Parliament( MP) for Warwick between 1751 and 1762, and represented Charleville in the Irish House of Commons between 1759 and 1760.
He was unmarried and was succeeded by his brother.
William Herbert, 18th Earl of Pembroke
William Alexander Sidney Herbert, 18th Earl of Pembroke, 15th Earl of Montgomery( born 18 May 1978) is an English peer.
He became earl in 2003 following the death of his father, Henry Herbert, 17th Earl of Pembroke.

Question: What nationality is Anselm Marshal's father?