Matilda de Clare (1182-1238) (b. 1182) Parents Maud de Saint Hilary Roger de Clare, 2nd Earl of Hertford Children John de Lacy Siblings Aveline de Clare, Countess of Essex Richard de Clare, 3rd Earl of Hertford Matilda d'Aubigny William d'Aubigny, 3rd Earl of Arundel Alice d'Aubigny Partners Roger de Lacy