Her paternal grandparents were John Marshal and Sybil of Salisbury, and her maternal grandparents were Richard de Clare, 2nd Earl of Pembroke, known as "Strongbow", and Aoife of Leinster.
Her paternal grandparents were John Marshal and Sybil of Salisbury. Her maternal grandparents were Richard de Clare. This Richard de Clare was known as "Strongbow", and Aoife of Leinster. Richard de Clare was 2nd Earl of Pembroke.