 He passed them on to his cousin, Sir Henry Mervyn of Hampshire, who in turn passed them on to his son, Captain James Mervyn.He arrived here around 1620, began building a castle which was completed in 1628 and the new town of Trillick was completed in the 1630s.The castle was described as one of the best of its kind and was occupied up until the 19th century, being vacant in 1814.