Gleaston Castle

The keep, Gleaston Castle, Gleaston in Cumbria, UK.
Building work on the castle began around 1325 by the de Harringtons and ownership stayed with the family until c1457. The castle later passed to Thomas Grey, great grandfather of Lady Jane Grey, but in his ownership it fell into a state of decay and was a ruin by 1540. It is thought that Lady Jane visited the castle before she became Queen.
On private land, but can be viewed from the road.