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.
William Herbert, 3rd Earl of Pembroke
William Herbert, 3rd Earl of Pembroke (8 April 158010 April 1630) was an English nobleman, politician, and courtier.
He was the son of Henry Herbert, 2nd Earl of Pembroke and his third wife Mary Sidney.
Chancellor of the University of Oxford, he founded Pembroke College, Oxford with King James I.
He was warden of the Forest of Dean, and constable of St Briavels from 1608 to 1630.
He served as Lord Chamberlain from 1615 to 1625.
In 1623, the First Folio of William Shakespeare's plays was dedicated to him, together with his brother, Philip Herbert, 1st Earl of Montgomery.
Catherine Herbert, Countess of Pembroke
Catherine Herbert, Countess of Pembroke(" née" Yekaterina Semyonovna Vorontsova;; 24 October 1784 – 27 March 1856), was a Russian noblewoman who later married the Earl of Pembroke.
She was born in Saint Petersburg, the daughter of Count Semyon Vorontsov( sometimes spelled Woronzow), the Russian ambassador in Britain from 1785, and the only sister of Prince Mikhail Vorontsov, Viceroy of New Russia and Caucasus( 1782 – 1856).
She was also a niece of Princess Dashkova, a friend of Catherine the Great and a conspirator in the" coup d'état" that deposed Tsar Peter III and put his wife on the throne.
In 1808, she married Gen. George Herbert, 11th Earl of Pembroke as his second wife and became Countess of Pembroke, the châtelaine of Wilton House, Wiltshire.
The Wilton Estate, Salisbury, held an exhibition on her life titled" Through Russian Eyes" in August 2008.
Her letters show her to have been a shrewd observer of European politics.
Elizabeth FitzHugh
Elizabeth FitzHugh( 1455/65- before 10 July 1507) was an English noblewoman.
She is best known for being the grandmother of Catherine Parr, sixth queen consort to Henry VIII, and her siblings Anne Herbert, Countess of Pembroke, and William Parr, 1st Marquess of Northampton.
Anne Parr, Countess of Pembroke
Anne Herbert, Countess of Pembroke, Baroness Herbert of Cardiff( 15 June 1515 – 20 February 1552) was lady- in- waiting to each of Henry VIII of England's six wives.
She was the younger sister of his sixth wife, Catherine Parr.
Alethea Howard, Countess of Arundel
Alethea Howard, 14th Baroness Talbot, 17th Baroness Strange of Blackmere, 13th Baroness Furnivall, Countess of Arundel( 1585 –), née Lady Alethea Talbot( pronounced" Al- ee- thia"), was a famous patron and art collector.
She was the wife of Thomas Howard, 21st Earl of Arundel with whom she build one of the most important art collection of the 17th century's England.
She was the youngest daughter of Gilbert Talbot, 7th Earl of Shrewsbury and his wife Mary Cavendish; and the sister of two other countesses:
Mary Herbert, Countess of Pembroke and Elizabeth Grey, Countess of Kent.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Mary Herbert, Countess of Pembroke (d. 1649)
Mary Herbert, Countess of Pembroke
(née Mary Talbot)
(c.1580 – March 1649) was the wife of William Herbert, 3rd Earl of Pembroke.
Mary was the daughter of Gilbert Talbot, 7th Earl of Shrewsbury, by his wife Mary, and was thus a granddaughter of Bess of Hardwick.
She had two sisters, both of whom also married into the nobility:
Alethea Howard, Countess of Arundel, and Elizabeth Grey, Countess of Kent.
She married Herbert on 4 November 1604 at Wilton, Wiltshire, and had one child, Henry, who died in infancy.
The Talbot Papers, held in Lambeth Palace Library, include several references to Mary.
It appears from a letter of 1603 that Sir Thomas Edmondes was instrumental in persuading her father of the advantages of her marrying Pembroke.
Following her husband's death in 1630, the dowager countess sometimes stayed at Baynard's Castle.
She died at Ramsbury Manor, Wiltshire, and was buried at Salisbury Cathedral.
Elizabeth Herbert, Countess of Pembroke and Montgomery
Elizabeth Herbert, Countess of Pembroke and Montgomery( January/ March 1737 – 30 April 1831) was the daughter of Charles Spencer and Elizabeth Trevor.
Joan de Munchensi
Joan de Munchensi or Munchensy( or Joanna), Lady of Swanscombe and Countess of Pembroke( c. 1230 – aft. 20 September 1307), was the daughter of Joan Marshal and granddaughter of William Marshal, 1st Earl of Pembroke and Isabel de Clare, 4th Countess of Pembroke" suo jure".

Question: Who is the father-in-law of Mary Herbert, Countess Of Pembroke (D. 1649)?
Answer: Henry Herbert, 2nd Earl of Pembroke