Agnes Vescy, the elder

Agnes, daughter of William de Ferrers, 5th Earl of Derby of the 1138 creation. [Burke's Peerage]

He [William de Vescy] married, 2ndly, before 1244, Agnes, 1st daughter of William (DE FERRERS), 5th EARL OF DERBY, by his 1st wife, Sibyl, sister and, in her issue, coheir of Anselm, 9th EARL OF PEMBROKE, 3rd daughter of William (MARSHAL), 4th EARL OF PEMBROKE. He died in Gascony, shortly before 7 October 1253, and was buried at Watton Priory, co. York. His widow died 11 May 1290, and was buried in the Greyfriars, at Scarborough. [Complete Peerage XII/2:276-8, (transcribed by Dave Utzinger)]

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Agnes de Ferrieres
BIRTH 1224
Derby, Derby Unitary Authority, Derbyshire, England
DEATH 1290 (aged 65–66)
Scarborough, Scarborough Borough, North Yorkshire, England
BURIAL
Greyfriars Abbey
Scarborough, Scarborough Borough, North Yorkshire, England
MEMORIAL ID 106602301

Agnes was the first daughter of William de Ferrieres, 5th Earl of Derby, by his 1st wife, Sibyl, sister and, in her issue, coheir of Anselm, 9th Earl of Pembroke, 3rd daughter of William Marshal, 4th Earl of Pembroke.
She married William de Vescy, the son of Eustace de Vescy, Lord of Alnwick and Margaret Fitzwilliam de Huntingdon.
They were the parents of at least four children
Sir William de Vescy, 1st Baron de Vescy of Alnwick
Sir John de Vescy of Alnwick
Agnes de Vescy
Juliana de Vescy, Heiress of Harlaston
Family Members
Parents
Sir William de Ferrers
1193–1254
Sibyl Marshal
1201–1245

Spouse
William de Vescy
1205–1253

Siblings
Isabelle de Ferrers
1226–1260
Maud "Matilda" de Ferrers Rochechouart
1230–1298
Eleanor de Ferrieres
1232–1274
Joan de Ferrers
1233–1267

Half Siblings
Robert de Ferrers
1239–1279
Sir William de Ferrers
1240–1288
Elizabeth Marshall de Ferrers Gruffydd
1240–1297
Joan Ferrers Berkeley
unknown–1309

Children
John de Vescy
1244–1289

• http://www.genealogics.org/getperson.php?personID=I00140363&tree=LEO
• http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=jweber&id...