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
Edward Ponsonby, 2nd Baron Sysonby film "Mrs Brown" – who was Private Secretary to Queen Victoria. His great-grandfather was badly wounded at the Battle of Waterloo, but survived to become General Sir Frederick Ponsonby. The sister who helped nurse him back to health was Lady Caroline, better known to history under her married name of Lady Caroline Lamb as the wife of the future Prime Minister Lord Melbourne and lover of the poet Lord Byron. Lady Caroline was also a key figure in the film "Lady Caroline Lamb" – played by Sarah Miles – in 1972. The father of the two siblings, Edward's great-great-grandfather, was