It would seem likely that the castle was founded in the 12th century as a motte and bailey by one of the Hoptons as a mesne lord of the Says of Clun Castle. It's very possible that Walter de Hopton built the stone castle during the Barons' War of the 1260s. The bailey was fortified in stone and an impressive rectangular two-storey keep was built. The last Walter Hopton died during the Wars of the Roses and the castle passed by marriage to the Corbet family of Moreton Corbet castle. From them it passed to Sir Henry Wallop when he married Elizabeth Corbet, daughter of Robert Corbet. He fortified it as a parliamentary stronghold at the outbreak of the English Civil War but died before he could take part in the conflict, leaving it to his son, Robert Wallop, the regicide.
During the Civil War Hopton Castle was one of the few castles to be held for the Parliament in the west. In 1644 Sir Michael Woodhouse, with a force of about 500, laid siege to the castle which was defended by about thirty Roundheads under the command of Samuel More. More eventually agreed terms and surrendered. There are varying versions of what happened next. According to More's account all those who surrendered, apart from himself, were killed and buried. Other accounts vary on how the siege ended. They state that after a three-week siege, More delayed surrendering until the bailey had been taken and the entrance to the keep was on fire, at which point the garrison surrendered to Sir Michael Woodhouse, who at his discretion, decided not to grant the majority of his prisoners quarter and they were killed by their captors. The castle was still habitable in 1700 but fell into disrepair soon afterwards. Substantial remnants of the much altered keep remain.
Restoration
Hopton Castle Preservation Trust
In November 2008 the Hopton Castle Preservation Trust took ownership of the castle. The trust recently raised one million pounds, half of which was a grant from the National Lottery to fund conservation work and secure a future for the site..
''Time Team''
The castle was the subject of a Time Team excavation and episode, appearing in series 17 of the long-running archaeology television programme, as episode 6 of that series, and broadcast on Channel 4 on 16 May 2010. The remaining castle keep was excavated over three days by Time Team, clarifying the shape of the castle and the history of its construction. The keep had been captured by the Royalists during the English Civil War. No evidence of a massacre was found. Time Team had previously excavated and filmed at High Ercall, another Civil War site in Shropshire.
Conservation and repair
The conservation and repair of the ruin, funded principally by The Heritage Lottery Fund and English Heritage was the culmination of many years of campaigning and fund raising on the part of the new owners, The Hopton Castle Preservation Trust. The works entailed significant structural stabilisation and rebuilding of the masonry and conservation of surviving medieval plaster. During this time a sophisticated and possibly unique garderobe chamber was revealed. As a result of evidence discovered within this chamber it is now believed that a siege breach may have taken place here.