THE future of King John's Palace at Kings Clipstone has been secured after a £106,500 repair scheme funded by English Heritage and Nottinghamshire County Council.
Work to save the 12th Century ruin began after tests revealed it was in imminent danger of collapse because of centuries of erosion.
But now specialist craftsmen have securely mortared and tied together failing masonry and have protected the wall heads with natural turf.
The ruin is part of a once magnificent medieval royal palace and deer park dating back to the reign of Henry II in the 12th Century.
It was a favoured residence of the Royal Family and Richard I once arranged a meeting with William, King of Scotland at the Palace, while in 1290 Edward I convened Parliament there.
Said Tim Allen, of English Heritage: "We are pleased to have been able to join forces with Nottinghamshire County Council in securing the funding needed to safeguard King John's Palace.
"These ruins are the historically important remains of a Romanesque hall dating back to the earliest phase of building under Henry II. Documentary analysis, geophysical survey and archaeological excavation show us that what survives today is only a small part of the much larger complex of buildings known to have existed at Clipstone in the 12th and 13th centuries.
"Thanks to the skills of specialist craftsmen, the ruins of this important medieval hunting lodge can be preserved and enjoyed for years to come."
The county council's cabinet member for environment and sustainability Richard Butler said he was delighted the work had been carried out.
"This county already has a wonderful heritage, which is even recognised and celebrated in Hollywood," he said. "It is an honour to be able to further strengthen Nottinghamshire's history for future generations to enjoy."