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This summer from 24 July, set off on a fun family adventure at Warkworth Castle. We need your help to uncover the castle's history – as our on-site reporter, can you explore the trail, find the missing stories and crack the secret code? Standard admission applies.
Henry, son of David I of Scotland, becomes Earl of Northumberland. He probably creates the motte and bailey and erects the first stone buildings at Warkworth.
Find out more about the history of Warkworth Castle
Henry II grants the castle and manor to Roger fitz Eustace.
Roger's son Robert adds many features still visible today, including the gatehouse, Carrickfergus Tower, postern gate and east curtain wall.
The castle is besieged by the Scots, but they fail to capture it.
Edward III grants the castle to Henry Percy, 2nd Baron Percy, of the important northern family. Warkworth, rather than Alnwick, is their favourite residence until the 17th century.
Henry Percy is made 1st Earl of Northumberland, and builds the great tower in celebration. He probably also establishes the hermitage.
Henry Percy and his son, Harry Hotspur, quarrel with Henry IV. Hotspur is killed in battle and the king besieges and takes Warkworth when Henry Percy conspires against him.
Henry V restores Henry Percy, son of Hotspur, to the earldom. Warkworth becomes the Yorkist headquarters during the War of the Roses.
The 4th Earl decorates the Lion Tower with his heraldry and begins to remodel the inner bailey.
Henry Percy, 6th Earl, makes repairs, but when he dies heirless the castle passes to the Crown and is neglected.
Thomas Percy is restored to the title but executed in 1572 for his role in the Rising of the North. Elizabeth I returns the ruinous castle to later Percys and repairs make it habitable.
Parliamentarian forces install a garrison during the Civil War.
The ruins become a tourist attraction. The Percys rebuild the castle wall and the site is clearly and excavated. Architect Anthony Salvin restores the great tower.
The castle is made a scheduled ancient monument and taken into state ownership. The Duke's Rooms in the great tower remain in use by the Percys until 1987.
Learn more about Warkworth Castle