After the Siege of Limerick, Luttrell brought his regiment into the Williamite cause, for which he received the forfeited estates of his elder brother, Simon Luttrell, including Luttrellstown, and was made a major general in the Dutch army.
Nach der Belagerung von Limerick brachte Luttrell sein Regiment in den Williamite-Fall, wofür er die verwirkten Ländereien seines älteren Bruders, Simon Luttrell, darunter auch Luttrellstown Castle, erhielt und zum Generalmajor der niederländischen Armee ernannt wurde.