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Joan Tudor

Birthplace: Snowdon, Caernarvonshire, Wales
Death: Died
Immediate Family:

Daughter of Jasper Tudor and Katherine Wydeville, Duchess of Buckingham
Wife of William ap Yevan
Mother of Morgan ap Williams and Sir John Williams, MP
Sister of Helen Gardiner
Half sister of Helen Tudor; Edward Stafford, 3rd Duke of Buckingham; Henry Stafford, 1st Earl of Wiltshire; Elizabeth Radcliffe, Countess of Sussex; Anne Stafford, Countess of Huntington and 1 other

Managed by: Private User
Last Updated:

About Joan Tudor

Joan Tudor, wife of William ap Yevan (son of Yevan Williams and Margaret Kemoys), and reported mother of Morgan ap William (or Williams) (born Llanishen, Glamorganshire, Wales, 1479), who later married at Putney Church, Norwell, Nottinghamshire, in 1499 to Catherine or Katherine Cromwell, born Putney, London, c. 1483, an older sister of Tudor statesman Thomas Cromwell, 1st Earl of Essex. They were fourth-generation ancestors to Oliver Cromwell, meaning Oliver Cromwell was a descendant of the Welsh Royal Family, via Joan Tudor's grandfather, Owen Tudor. (posted February 18, 2013) The article cites as its source Douglas Richardson, Plantagenet Ancestry: A Study In Colonial And Medieval Families, Genealogical Publishing, 2011, p.370.


M. Stolhart directed me to the Wikipedia entry for Owen Tudor, father of Jasper Tudor, 1st Duke of Bedford that notes that Joan Tudor was one of Jasper's illegitimate children.

Additional sources asserting that Joan Tudor Williams was fathered by Sir Jasper have been located at:

"Jasper reportedly had two illegitimate daughters:

1) Helen Tudor (born c. 1459), wife of a cloth merchant William Gardiner, sometimes spelled William Gardynyr for his Welsh descent (born c. 1450) and mother of Stephen Gardiner, Bishop of Winchester (c. 1490 - November 12, 1555). Richard Gardiner, ( Born 1486 - 1548), and William Gardiner , (born 1488 - 1549).

2) Joan Tudor. Wife of William ap Yevan and reported mother of Morgan ap Williams. Morgan was later married to Catherine Cromwell, an older sister of Tudor statesman Thomas Cromwell. They were fourth-generation ancestors to Oliver Cromwell. 24"

And at:


If Joan Tudor was born in 1453, she could not possibly be the daughter of Catherine Woodville, who was born in 1458 (or, according to, circa 1442.) By all accounts, the union of Jasper and Katherine was childless. Similarly, sources refer to Helen as a daughter produced by Sir Jasper's liason with Mevanvy, but do not mention any other offspring, leaving the matter of Joan's maternal ancestry in question. If Joan was married at the extremely young age of about twelve or thirteen years of age, the implication is that her untimely death may have been associated with giving birth to son(s) Morgan (and John?). Between having been born an illegitimate child and living so briefly (if these dates are close to accurate), it would be little wonder that there are few records of Joan's existence. Memory or legend of Joan's place in history appears to be thanks to the rise of the Cromwell line, to which she purportedly contributed through son Morgan.,_1st_Duke_of_Bedford reports that Jasper Tudor, First Duke of Bedford and Catherine Woodville, who were married on November 7, 1485, had no children other than a stillborn son born in 1490.

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Joan Tudor's Timeline

Snowdon, Caernarvonshire, Wales
Age 16
Age 26
Llanishen, Glamorgan, Wales
Age 26