Caernarvon Boroughs
By 1754 Caernarvon Boroughs was firmly under the control of the Wynn family of Glynllivon. They held the constableship of Caernarvon castle; the mayoralty of Nevin was hereditary in the family; that of Pwllheli in their allies the Vaughans of Corsygedol; but Criccieth was controlled by the Owens of Brogyntyn. The Wynns were unchallenged until a family dispute opened the way for a rival interest. After the general election of 1780 Glyn Wynn realised that his elder brother, Lord Newborough, who had been defeated for the county, would demand the borough for himself.
