Hard evidence sorely lacking for parentage.

http://thepeerage.com/p3006.htm#i30054

Elizabeth Lestrange

F,, d. 23 August 1383

    Elizabeth Lestrange was the daughter of John Lestrange, 4th Lord Strange (of Blackmere). 

She married Thomas Mowbray, 1st Duke of Norfolk, son of John Mowbray, 4th Lord Mowbray and Elizabeth de Segrave, between 15 March 1382 and 1383.

She died on 23 August 1383.

    Her married name became Mowbray.

Thomas Mowbray, 2nd Duke of Norfolk

http://thepeerage.com/p10270.htm#i102700

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Husband's Name

Thomas De MOWBRAY (AFN:8J5J-FB)  Pedigree  

Born: 22 Mar 1365/1366 Place: Epworth, Isle Of Axholme, Lincolnshire, England
Died: 22 Sep 1399 Place: , Venice, Venice, Italy
Buried: Place: St.george Abbey, Venice, Venice, Italy
Married: 1382/1383 Place: Arranged Marriage
Father: John De MOWBRAY (AFN:8J5J-GH) Family
Mother: Elizabeth De SEGRAVE (AFN:8J5J-HN)
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Wife's Name

Elizabeth STRANGE (AFN:83TR-7F)  Pedigree  

Born: 6 Dec 1373 Place: Of Chauton, Hmpshr, Engl
Died: 23 Aug 1383 Place: Sp
Married: 1382/1383 Place: Arranged Marriage
Father: John STRANGE (AFN:83TR-53) Family
Mother: Isabel BEAUCHAMP (AFN:H4L0-KK)
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Children

http://thepeerage.com/p3006.htm#i30054

Elizabeth Lestrange was the daughter of John Lestrange, 4th Lord Strange (of Blackmere). She married Thomas Mowbray, 1st Duke of Norfolk, son of John Mowbray, 4th Lord Mowbray and Elizabeth de Segrave, between 15 March 1382 and 1383. She died on 23 August 1383.

    Her married name became Mowbray.