Lady Ada Mortimer, The Duchess of Dorchester

Lady Ada Mortimer was born the eldest child and daughter of Sir Henry Mortimer, The Earl of Northampton and his first wife, Lady Ada Moore. Lady Ada Mortimer married married Sir Oscar Mortimer, The 3rd Duke of Dorchester.

though the marriage _ her husband had already, at a young age, made enemies within the nobility.

From her marriage she she became the sister-in-law to The Lady Anna Beaufort, The Duchess of Beverly.