The 1641 Rising by the Irish of Ulster, the Cromwellian Conquest of 1649, and the subsequent Williamite wars of the 1690s all took their toll on the local economy. As recorded in the Journal of Isaac Butler, Carlingford the town was in a "state of ruin" by 1744. However, the final nail in the coffin was the desertion to open water of the prosperous herring shoals that occupied the lough by the early 18th century.