Newton House stands proudly at the heart of the Dinefwr estate and has been a family home for over three hundred years to the descendants of Lord Rhys, the mighty Prince of the Welsh Kingdom of the Deheubarth. Newton House is considered one of the most haunted houses in the United Kingdom and has been cared for by the National Trust since 1990. Come to Newton House to learn about its history, admire its grandeur, and say hello to Lizzy, Betsy, Arthur and the rest.