A number of Huguenots served as mayors in Dublin, Cork, Youghal and Waterford in the 17th and 18th centuries. Numerous signs of Huguenot presence can still be seen with names still in use, and with areas of the main towns and cities named after the people who settled there. Examples include the Huguenot District and French Church Street in Cork City; and D'Olier Street in Dublin, named after a High Sheriff and one of the founders of the Bank of Ireland. A French church in Portarlington dates back to 1696, and was built to serve the significant new Huguenot community in the town. At the time, they constituted the majority of the townspeople.