Beeston Castle is a former Royal castle in Beeston, Cheshire, England (), perched on a rocky sandstone crag above the Cheshire Plain. It was built in the 1220s by Ranulf de Blondeville, 6th Earl of Chester (1170–1232), on his return from the Crusades. In 1237, Henry III took over the ownership of Beeston, and it was kept in good repair until the 16th century, when it was considered to be of no further military use, although it was pressed into service again in 1643, during the English Civil War. The castle was slighted (partly demolished) in 1646, in accordance with Cromwell's destruction order, to prevent its further use as a bastion. During the 18th century, parts of the site were used as a quarry. The castle is a Scheduled Ancient Monument owned and managed by English Heritage. The walls of the outer bailey and the gatehouse and curtain walls of the inner bailey are recorded separately in the National Heritage List for England as designated Grade I listed buildings. A legend states that the royal treasure of Richard II was buried in the castle grounds but many searches have failed to discover the hoard. Location The castle is built on Beeston Crag, which is in the southerly part of the Mid Cheshire Ridge, a chain of low sandstone hills that stretches from the River Mersey down to the central region of the Cheshire Plain. The low-lying area between the southerly and the northern ranges of the ridge is known as the Beeston Gap. It was formed by a meltwater channel at the end of the Ice age. The crag, just like the neighbouring Peckforton Hills, is part of a thicker sequence known as the New Red Sandstone. It was formed from easterly dipping layers of Triassic sandstone. The lower slopes are formed from Wilmslow Sandstone Formation while the upper strata are part of the Helsby Sandstone Formation, which is around 245 million years old. The hillock is capped by a small outcrop of sandstones assigned to the Tarporley Siltstone Formation (and formerly known as the Keuper Waterstones). Both types of sandstones were once quarried at multiple sites within the castle grounds. Along the eastern margin of the hill is the Peckforton Fault, a major north–south-aligned geological fault which downthrows the strata to the east. A low ridge of glacial moraine extending east from the castle lodge is interpreted as marking