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 Butler went into effect. Because the new law did not apply retroactively, and perhaps also because Lord Baltimore left Maryland indefinitely in 1684, Butler and Charles lived out the rest of their lives as the slaves of William Boarman, Eleanor Butler's husband's owner. They had seven or eight children, all born after the repeal of the 1664 law, but these were nonetheless born slaves. One son, Jack, apparently escaped and later bought his freedom from the Boarman family. The rest remained chattel. In October 1770, two of their descendants, William and Mary Butler, still enslaved, filed suit for their freedom on