Family
 Miles of Gloucester, 1st Earl of Hereford 1)Died 4 Dec 1143 1) Notes: Acquired the castle of Abergavenny in 1141, which he added to inheritances from his father and father-in-law/wife.  Sibyl de Newmarch, Lady of Brecknock 1)Daughter of Bernard de Newmarch and Nest ferch Osbern. Born ± 1100 Brecon Castle, Breconshire, Wales Died after 1143 Notes: Heiress to her father. Children: 1. Lucy of Hereford 1)Notes: Heiress to he father's lands, alongside sisters Margaret and Bertha. 2. Margaret of Hereford 1)Born between 1122 and 1123 Died 6 Apr 1197 Notes: Heiress to he father's lands, alongside sisters Lucy and Bertha. 3. Bertha of Hereford 1)Born ± 1130 Notes: Heiress to he father's lands, alongside sisters Margaret and Bertha. | |||
Sources
1) Source: English Baronies: a Study of Their Origin and Descent, 1086-1327. Reference: Pages 6-9: Barony of Miles of Gloucester (Questionable reliability of evidence)2) Source: Duchy of Lancaster: Royal Charters "Grant to Miles de Gloucester of Sybil daughter of Bernard de Neufmarché in marriage"Dated: 1121. External Link
http://discovery.nationalarchives.gov.uk/details/r/C3540439. Reference: DL 10/6
3) Source: Duchy of Lancaster: Deeds, Series L "Notification that Walter de Gloucester has given to William de Mara, his nephew, Hereford Parva in fee by the service of two knights; but because Walter de Gloucester and his son Miles had given Hereford Parva in dower to Sibyl wife of the said Miles, they have given her Barnsley (Berdesleia) in exchange, and Sibyl has granted Hereford Parva to William de Mara."Dated: Uncertain. External Link
http://discovery.nationalarchives.gov.uk/details/r/C5685091. Reference: DL 25/3