Powis Castle is a medieval castle, fortress and grand country mansion near Welshpool, in Powys, Wales.
The castle has also been known as Castell Coch, Castell Pool, Castell Pola, Castell Pole, Castell Trallwng, Red Castle, Redde Castle and Castel Cough.The seat of the Earl of Powis, the castle is known for its extensive, attractive formal gardens, terraces, parkland, deerpark and landscaped Estate. The unusual spelling of Powis, with an 'i' instead of a 'y' as in the county spelling, derives from the Herbert family's title as Lord, and later Earl of Powis. Powis is a shortened version of the Latinised spelling of the Welsh Powys.
The castle is the ancestral home of the Herbert family, with connections to the Clive family, though contrary to popular misconception Robert Clive never owned or lived at the castle. The property is under the care of the National Trust having been bequeathed to the organisation in 1952.
Princess Victoria visited the castle as a child when her mother took her to tour England and Wales in 1832.