Dalkey is one of the most affluent suburbs of Dublin and a seaside resort southeast of the city, and the town of Dún Laoghaire, in Ireland. It was founded as a Viking settlement and became an active port during the Middle Ages. According to chronicler John Clyn (c.1286–c.1349), it was one of the ports through which the plague entered Ireland in the mid-14th century. In modern times, Dalkey has become a seaside suburb that attracts some tourist visitors. It has been home to writers and celebrities including Jane Emily Herbert, Maeve Binchy, Hugh Leonard, Bono, Van Morrison and Enya. The village and broader area lie within the jurisdiction of Dún Laoghaire-Rathdown County Council.