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Joan (Plantagenet) de Mowbray (abt. 1312 - abt. 1349)

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Joan de Mowbray formerly Plantagenet aka of Lancaster
Born about in Norfolk, Englandmap
Ancestors ancestors
Wife of — married before 4 Jun 1328 (to Jul 1349) [location unknown]
Descendants descendants
Died about in Yorkshire, Englandmap
Profile last modified 22 Nov 2019 | Created 2 Jan 2011 | Last significant change: 22 Nov 2019
19:30: Traci Thiessen posted a message on the page for Joan (Plantagenet) de Mowbray (abt.1312-abt.1349). [Thank Traci for this | 2 thank-yous received]
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Joan Plantagenet is a descendant of a Magna Carta surety baron.
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This is the main profile for Joan of Lancaster (Plantagenet). Her LNAB is "PLANTAGENET". Merge duplicates into this profile.



The House of Lancaster crest.
Joan (Plantagenet) de Mowbray is a member of the House of Lancaster.

Joan of Lancaster (Johannes, Johannis[1]) is the 6th and youngest daughter of Henry, 3rd Earl of Lancaster[2] & Maud de Chaworth.[3]

Born about 1312[1] in Norfolk, England[citation needed]
Married (between 28 February 1327 and 4 June 1328) Sir John de Mowbray, (29 Nov 1310–4 Oct 1361) 3rd Baron Mowbray (son of Sir John de Mowbray, 2nd Baron, and Aline de Brewes).[3][1]
  • John de Mowbray, 4th Baron Mowbray (25 Jun 1340–1368),[3] married Elizabeth de Segrave
  • Blanche (d. 21 Jul 1409),[4][3] contract to marry Edward de Montagu (d. ante Feb 1369) "fell through."[3][5] She married (1) John de Segrave,[6][3] (2) Sir Robert Bertram,[3] (3) Thomas, 2nd Lord Poynings,[3][4] (4) Sir John de Worth,[3] (5) Sir John Wiltshire[3]
  • Eleanor,[3] married (1) Sir Roger de la Warre, 3rd Lord la Warre, (2) Sir Lewis de Clifford, KG

Joan died 7 Jul 1349, of the Black Death, and was buried at Byland Abbey ("Bellanda"),[1] YKS, before the High Altar[7]

Burial of Joan, wife of Sir John de Mowbray, 3rd Lord Mowbray:

His (John de Mowbray's) wife Joan, "died 7 July [1349]. On 3 Sept. 1349, he granted a moiety of the advowson of Bubwith, Yorkshire to the abbot and convent of Byland for the salvation of the soul of his wife, Joan, who was buried before the high altar of Byland Abbey, Yorkshire."[8]

Note: Byland Abbey is located near the village of Byland with Wass in North Yorkshire. Founded by the Mowbray family. In the present location, it dates from 1177. The Abbey was closed by Henry VIII in 1538 in the Dissolution of the Monasteries. The Abbey is now a quality ruin and quite a lot of the remains show that the church was enormous. When it was built, it was the largest Cistercian church in England, with masonry of the highest quality. The Abbey remains include one of the largest cloisters in England, with many beautifully constructed details.[citation needed]


  1. 1.0 1.1 1.2 1.3 Charles Cawley. Joan, entry in "Medieval Lands" database (accessed 18 April 2019).
  2. Alfred Gibbons, Early Lincoln Wills, 1280–1547 (James Williamson, Lincoln, 1888), Page 17-8:
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 Wikipedia: John de Mowbray, 3rd Baron Mowbray
  4. 4.0 4.1 Dr Keith E. Fildes, The Baronage in the Reign of Richard II, 1377-1399, p 224
  5. Magna Carta Ancestry, p 585: "Blanche Mowbray" (Richardson).
  6. Annual Report of the Deputy Keeper of the Public Records, Volume 49, p 595 (dispensation)
  7. Lewis, (n.d.). "Joan Plantagenet." Source citations include Richardson's Magna Carta Ancestry, Vol II, pp 526-527, 529, 581-582; Vol. III, pp. 202-203; Plantagenet Ancestry, pp 401, 424-426, 530-531, 552; Vol. III, p. 466-467; and Royal Ancestry, Vol. III, pp 460-461; Vol. IV, pp 182-183, 260, 265, and 486. Note - because of the style used for footnotes, facts can appear to be attributed to Richardson, when they are not stated by Richardson.
  8. Royal Ancestry, Vol IV, p 183 MOWBRAY #5 John de Mowbray (Richardson)
  • Douglas Richardson, Magna Carta Ancestry: A Study in Colonial and Medieval Families, Royal Ancestry series, 2nd edition, 4 vols., ed. Kimball G. Everingham (Salt Lake City, Utah: the author, 2011)
  • Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, 5 vols., ed. Kimball G. Everingham (Salt Lake City, Utah: the author, 2013)
  • Dallaway, J. (1830). "Pedigree of Mowbray." A history of the western division of the county of Sussex, Volume 2, Part 2 (pp.181). T. Bensley. Google Books.
  • Wikipedia: Joan of Lancaster
  • Cawley, Charles. "Medieval Lands": A prosopography of medieval European noble and royal families © by Charles Cawley, hosted by Foundation for Medieval Genealogy (FMG). See also WikiTree's source page for MedLands.


Magna Carta Project

Magna Carta ancestry
Joan of Lancaster was a descendant of Magna Carta surety baron Hugh le Bigod by way of her maternal grandmother, Isabelle de Beauchamp, mother of Maud de Chaworth.
This profile was reviewed and approved for the Magna Carta Project on 30 Decemeber 2017 by Liz Shifflett during the review/approval of the trail from Nathaniel Littleton (Gateway Ancester) to William de Mowbray (Surety Baron), through Joan's son John, the 4th Lord Mowbray, and his father, Joan's husband John de Mowbray. ~ Noland-165 16:35, 30 December 2017 (EST)

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No known carriers of Joan's DNA have taken a DNA test.

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On 22 Nov 2019 at 19:30 GMT Traci Thiessen wrote:

On 11 Apr 2019 at 01:35 GMT Ron Campbell wrote:

Hi Liz,

Joan (Plantagenet) de Mowbray and Ron Campbell (Campbell-25710) are both descendants of Isabel (Beauchamp) le Despenser. Joan and Ron are first cousins 21 times removed.

On 23 Feb 2018 at 00:34 GMT William Collins wrote:

Interesting conversation on plague deaths at!topic/soc.genealogy.medieval/mb58SfEgYD0

Topic: Any Way To Determine If An Ancestor Died Due To The Black Death?

On 22 Feb 2018 at 19:49 GMT Chet Snow wrote:

The Black Death reference was in the Death Location field and was simply transferred to the Biography so the data would not be lost when that field was corrected as per instructions from Liz on Magna Carta email. It can be marked "Uncertain" if desired.

On 22 Feb 2018 at 19:45 GMT Liz (Noland) Shifflett wrote:

cause of death needs a source. "of the Black Death" was added to bio in section sourced to her MedLands entry (which does not give cause of death). A second footnote to the paragraph is to Lewis, who also does not give cause of death.

On 21 Jul 2016 at 23:35 GMT Liz (Noland) Shifflett wrote:

never mind. I've received a private message that makes it clear this is beyond my capabilities. I'll leave it to y'all to find a suitable adornment to use as a primary photo.

Cheers, Liz

On 21 Jul 2016 at 22:28 GMT Liz (Noland) Shifflett wrote:

I've been working with profile managers as to whether or not they want a background image, and in doing so have worked on getting a primary image for the profile (displays in the upper left of the profile page instead of the generic silhouette of a man or woman).

Any suggestions for Joan? I'm not that well versed about arms, but would it be appropriate for her profile to have the same primary photo as her father?

Let me know (by private message or post to my profile page - I don't receive notice of posts to this page).


Joan is 19 degrees from T S Eliot, 18 degrees from Walter Howe and 7 degrees from Henry VIII of England on our single family tree. Login to find your connection.