 Arthur Capell's widow Lady Elizabeth Capell successfully petitioned Parliament for Cassiobury (and the other lands she had inherited from her father Charles Morrison) to be returned to her on (7–8 May 1649).After Capell's execution, his son Arthur Capell, 1st Earl of Essex, inherited his estates.Following the Restoration of the Monarchy, the younger Arthur Capell rose to become Lord Lieutenant of Ireland in the reign of Charles II.