Plas Newydd, Llangollen Plas Newydd, Llangollen Plas Newydd (, ; "new hall" or "new mansion") is a historic house in the town of Llangollen, Denbighshire, Wales, and was the home of the Ladies of Llangollen, Lady Eleanor Butler and Sarah Ponsonby, for nearly 50 years. Today, it is run as a museum by Denbighshire County Council. Plas Newydd is notable as the home where two Irish ladies, Lady Eleanor Butler and Miss Sarah Ponsonby (the Ladies of Llangollen) eloped and set up house together in the late 18th century, scandalising contemporary British society. Plas Newydd was originally a five-roomed stone cottage, but over
Eleanor de Montfort, Princess of Wales was the custom, of the cathedral church at Worcester, on the Feast Day of St Edward, 1278; Edward gave the bride, his cousin, away and paid for the wedding feast. Before the wedding mass was celebrated, Edward insisted that Llywelyn should put his seal to an adjustment to the agreement that they had previously made. Llywelyn had no alternative but to comply, and he later stated that he did it under duress, 'moved by the fear that can grip a steadfast man'. Following the ceremony, Eleanor became officially known as Princess of Wales and Lady of Snowdon. Eleanor died giving