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
Ponsonby, New Zealand over the last two decades, arguably returning it to its largely middle class origins. Its postcode is 1011. The Māori name for the ridge is "Te Rimu Tahi" ('The Lone Rimu Tree', referring to an ancient tree which, it is claimed, stood in a prominent position at what is now the intersection of Ponsonby Road and Karangahape Road). Ponsonby is named after Ponsonby Road which runs the length of the ridge from the Karangahape Road intersection to the south to the Three Lamps intersection to the north. En route there are three major intersections; Williamson Avenue, which is the main