When Garret died in 1627, his Viscountcy and estates including Mellifont Abbey passed to his eldest son Charles.
Following the outbreak of the Irish Rebellion, Moore's house at Mellifont was captured on 21 November 1641 as a prelude to the rebels' Siege of Drogheda.
[3] His unusual death was the inspiration for a similar scene in the 1645 play, Cola's Furie, or Lirenda's Misery by Henry Burkhead, printed in Kilkenny.
[4] Moore was succeeded by his son, Henry who was made Earl of Drogheda by Charles II following the Restoration.
She died in June 1649, reportedly of gangrene from a broken leg, three days following a fall from a horse brought on by the shock of seeing St. Peter's Church of Ireland, Drogheda, which held her husband's tomb, for the first time.