Though Henry IV gave Thomas Percy influence in south Wales, relations between the two deteriorated due partly to delays in payment. Thomas’ nephew, Henry Percy, rose in armed rebellion in July 1403 and Thomas joined him. The rebellion culminated in the battle of Shrewsbury in which Thomas Percy was captured. Two days later, on 23 July, he was beheaded and his property – including Wressle Castle – was subsequently confiscated by the crown. Between 1403 and 1471 ownership of the castle swapped between the crown and those the reigning monarch chose to grant it to, though only for short periods. In 1471, Wressle Castle was given to Henry Percy, 4th Earl of Northumberland, returning it to the Percy family. His son, Henry Algernon Percy, 5th Earl of Northumberland, undertook an extensive programme of refurbishment at Wressle Castle, refurbishing the interior and updating the gardens. At the time he was one of the richest men in England. "The Northumberland Household Book" was compiled around this time and details day-to-day domestic activities at the castles of Wressle and Leconfield, and is used by historians to study the late medieval household.