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Lady Constance <I>Holland de Mowbray</I> Grey

Lady Constance Holland de Mowbray Grey

Ruthin, Denbighshire, Wales
Death 14 Nov 1437 (aged 49–50)
London, City of London, Greater London, England
Burial London, City of London, Greater London, England
Plot She was buried by her brother John Holand or Holland, Duke of Exeter before the church was destroyed in the 1800s.
Memorial ID 101998783 · View Source
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Sir John Grey KG (c. 1387 – August 27, 1439), English nobleman and soldier, was the eldest son of Reginald Grey, 3rd Baron Grey de Ruthyn and Margaret Roos.[1] He was also Captain of Gourney.

He traveled with the king to France in 1415 and 1417.[1] He fought at the Battle of Agincourt and was invested as the 151st Knight of the Garter on 5 May 1436.[1]

He married before 1410, Lady Constance Holland (c.1387–14 November 1437), the daughter of Elizabeth of Lancaster, and John Holland, 1st Duke of Exeter;[1] the half brother of King Richard II. By her mother, Constance was a niece of King Henry IV. She was the widow of Thomas Mowbray, 4th Earl of Norfolk, whom she had been betrothed to as a 4-year-old child,[1] but the marriage was never consummated.[citation needed] Mowbray was executed at age nineteen due to his revolt against her uncle, King Henry IV.[1]

Sir John Grey and Constance Holland had three children:[1]
Edmund Grey, 1st Earl of Kent (1416–1490)[1]
Thomas Grey, 1st Baron of Richemount Grey (from Ridgmount, Bedfordshire) in 1450. Executed in 1461.[2]
Constance Grey, who married Sir Richard Herbert.[1]

After the death of Constance, Grey married Lady Margaret Mowbray, daughter of Thomas Mowbray, 1st Duke of Norfolk and widow of Sir Robert Howard, before 1 July 1438.[1] They had no issue.[1]

Grey predeceased his father, who was succeeded by Edmund.


1.^ Douglas Richardson. Magna Carta Ancestry: a study in colonial and medieval families, Genealogical Publishing, 2005. pg 380-81. Google eBook

2.^ R. Ian Jack, ‘Grey family (per. 1325–1523)', Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, Jan 2008.

Jack, R. Ian, "Grey family", on the website of the Oxford Dictionary of National Biography (subscription or UK public library membership required)

"Grey, Reginald de". Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900.


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  • Created by: Carole Elizabeth Nurmi Cummings # 47178231
  • Added: 10 Dec 2012
  • Find A Grave Memorial 101998783
  • Find A Grave, database and images ( : accessed ), memorial page for Lady Constance Holland de Mowbray Grey (1387–14 Nov 1437), Find A Grave Memorial no. 101998783, citing St Katherine by the Tower, London, City of London, Greater London, England ; Maintained by Carole Elizabeth Nurmi Cummings # 47178231 (contributor 47178231) .