As the eldest child of a family without male issue, Margaret was expected to inherit from her father until her stepmother, Isabel le Despenser, gave him a son.

[1] Her paternal grandfather was Thomas de Beauchamp, 12th Earl of Warwick, who fought for John of Gaunt in Spain and imprisoned in the Tower of London by Richard II and pardoned by Henry IV.

Although the brother-in-law were prepared to agree a settlement, the dispute was maintained by the Talbots and once again became violent with Margaret taking an active role.

Margaret took the initiative in the ensuing legal settlement, by which Lord Berkeley under duress conceded property and was required to enter into substantial recognizances.

[8] Following her husband's death in 1453, Margaret was drawn into a dispute with her stepson John Talbot, 2nd Earl of Shrewsbury over his father's attempt to divide his inheritance between the issues of both his marriages.