Family Relationships

John Dudley, Duke of Northumberland and his wife Jane Guildford had 13 children, eight sons and five daughters; however, there survive no records of their birth dates, which are therefore difficult to establish with any certainty.

Table 1: The sons of John Dudley and Jane Guildford

Henry Dudley, c.1525 – 1544, “died at the siege of Boulogne being xix years old”*

Thomas Dudley, “second son died at the age of two years”*

John Dudley, Earl of Warwick, 1530 – 21 October 1554, “third son died without issue xxiii years old”*; “died Anno. 1554. skarce 24 years of age”**

Ambrose Dudley, Earl of Warwick, 1531(?) – 21 February 1590, “fourth son”*

Robert Dudley, Earl of Leicester, 24 June 1532 – 4 September 1588, “fifth son”***

Guildford Dudley, died 12 February 1554, “sixth son married the Lady Jane and died with her”*

Henry Dudley, died 1557, “seventh son slain at the siege of St. Quentin’s”*

Charles Dudley, “eighth son died at the age of viii years”*

data based on:
*Genelogies of the Erles of Lecestre and Chester: U Penn Ms. Codex 1070
**John Dee: The Mathematicall Praeface
***Epitaph of Robert Dudley, Earl of Leicester at Beauchamp Chapel, St. Mary’s Church, Warwick

Table 2: The daughters of John Dudley and Jane Guildford

Mary, Lady Sidney, eldest daughter, died 9 August 1586

Margaret, “died at the age of iiii years”*

Temperance, “died at the age of one year”*

Katherine Hastings, Countess of Huntingdon, third or fourth daughter**, c.1543(?)** – 14 August 1620

Katherine, fifth daughter**, 1545(?)** – 1552(?), “died at the age of vii years”*

data based on:
*Genelogies of the Erles of Lecestre and Chester: U Penn Ms. Codex 1070
**Simon Adams (ed.) (1995): Household Accounts and Disbursement Books of Robert Dudley, Earl of Leicester.Cambridge University Press. p. 44.

Table 3: John Dudley’s children with their spouses

Henry Dudley c.1525 – 1544
John Dudley 1530 – 1554	m. 1550 Anne Seymour, daughter of Edward Seymour, Duke of Somerset
Ambrose Dudley 1531(?) – 1590	m. c.1549 Anne Whorwood, daughter of Sir William Whorwood, Attorney-General	m. before July 1553 Elizabeth Tailboys, Baroness Tailboys	m. 1565 Anne Russell, daughter of Francis Russell, 2nd Earl of Bedford
Robert Dudley 1532 – 1588	m. 1550 Amy Robsart, daughter of Sir John Robsart	m. 1578 Lettice Devereux, Countess of Essex, daughter of Sir Francis Knollys
Guildford Dudley d.1554	m. 1553 Lady Jane Grey
Henry Dudley d.1557	m. before July 1553 Margaret Audley, daughter of Thomas Audley, 1st Baron Audley of Walden
Mary Dudley d.1586	m. 1551 Henry Sidney
Katherine Dudley c.1543 – 1620	m. 1553 Henry Hastings, son of Francis Hastings, 2nd Earl of Huntingdon

Table 4: John Dudley and his brothers, and their half-sisters from their father’s first marriage and their mother’s second marriage

Edmund Dudley (1571/1572 – 1510)	m. c.1493 Anne Windsor (d. by 1503), sister of Andrew Windsor, 1st Baron Windsor	m. c.1503 Elizabeth Grey (c.1481/3 – 1525), daughter of Edward Grey, 4th Viscount Lisle	Elizbabeth Grey m. 1511 Arthur Planatgenet
	Elizabeth Dudley (before 1500 – after 1550); m. William Stourton, 7th Baron Stourton; m. 1550 Edward Ludlowe; mother of Charles Stourton, 8th Baron Stourton and Ursula Stourton, 2nd wife of Edward Fiennes, 9th Baron Clinton	John Dudley, Viscount Lisle, Earl of Warwick, Duke of Northumberland (1504/1505 – 1553); m. before 1525 Jane Guildford	Frances Plantagenet; m. John Basset, m. Thomas Monke
		Sir Andrew Dudley (c.1507 – 1559)	Elizabeth Plantagenet; m. before 1543 Francis Jobson
		Jerome Dudley (d. after 1556)	Bridget Plantagenet; m. William Carden

Table 5: The barons of Dudley Castle and their cousins Edmund, John, and Robert Dudley

John (Sutton), 1st Baron Dudley (d.1487)
Sir Edmund Dudley	John Dudley, Knight of Atherington (d.1500)	William Dudley, Bishop of Durham (d.1483)
Edward Dudley, 2nd Baron Dudley (d.1532)	Edmund Dudley (d.1510)
John Dudley, 3rd Baron Dudley, “Lord Quondam” (d.1553)	John Dudley, Duke of Northumberland (d.1553)
Edward Dudley, 4th Baron Dudley (d.1585), brother of the conspirator Henry Dudley	Robert Dudley, Earl of Leicester (d.1588)

Table 6: The descent of John Dudley, Duke of Northumberland from Richard Beauchamp, 13th Earl of Warwick and John Talbot, 1st Earl of Shrewsbury

Richard Beauchamp, 13th Earl of Warwick
Margaret Beauchamp …………… married	John Talbot, 1st Earl of Shrewsbury
	John Talbot, 1st Viscount Lisle
	Elizabeth Talbot, Baroness Lisle
	Elizabeth Grey, Baroness Lisle
	John Dudley, Duke of Northumberland

Table 7: The common descent of Lady Jane Grey and Guildford Dudley from Edward Grey and his wife Elizabeth Ferrers, Baroness Ferrers of Groby

Reginald Grey, 3rd Baron Grey de Ruthyn
Sir Edward Grey ……………. married	Elizabeth Ferrers, Baroness Ferrers of Groby
Sir John Grey of Groby	Edward Grey, 1st Viscount Lisle
Thomas Grey, 1st Marquess of Dorset	Elizabeth Grey, Baroness Lisle
Thomas Grey, 2nd Marquess of Dorset	John Dudley, Duke of Northumberland
Henry Grey, Duke of Suffolk	Lord Guildford Dudley
Lady Jane Grey

Table 8: The descent of Robert Dudley and his siblings on their mother’s side

Sir John Guildford	Richard West, 4th Baron West and 7th Baron De La Warr
Sir Richard Guildford	Thomas West, 5th Baron West and 8th Baron De La Warr
Sir Edward Guildford …. married	Eleanor West
Jane Guildford
Robert Dudley, Guildford Dudley etc.