There have been persistent rumours of a treasure hidden by Richard II somewhere in the castle grounds. Richard is supposed to have hidden part of his personal wealth at Beeston on his journey to Chester in 1399, before boarding a ship to Ireland to suppress a rebellion there. On his return, Richard was deposed by Henry, Duke of Lancaster, the future Henry IV, and his treasure is said to have remained undiscovered. Many searches have been carried out, most of them focusing on the deep well in the inner bailey, but nothing has ever been found. The rumour of hidden treasure may not be well-founded, as Henry IV is recorded as having "recovered Richard's gold and jewellery from its various hiding places".