Craig-y-Nos Castle began life as an early Victorian country house set in parkland, which was extensively built up in the late 1870s, adding north and south wings, a clock tower, conservatory, winter gardens and a theatre. Constructed in 1840 by Captain Rice Davies Powell, the house was originally called Bryn Melin but purchased by famous opera singer Adelina Patti in 1878 and renamed for the Welsh of "Rock of the Night." After the death of Adelina, the castle was sold and became a sanitorium for patients with TB between 1920-1960. Adelina is rumoured to haunt the hotel and the opera house, as is her first husband, the Marquis of Caux. The ghosts of patients are also reported to have been seen wandering around the build, dating back to a period when the Castle was a hospital.