 Although the English king soon ransomed some of the Scottish nobles to gain revenue for his war with France, the Knight of Liddesdale and, of course, the king continued to be imprisoned in the Tower of London.However, the prison experience did not fully stifle the Knight's intrigues in Scotland, for in 1350, four years into his captivity, he somehow managed to arrange for the assassination of Sir David Barclay, to avenge Barclay's murder of the Knight's brother, which occurred while the Knight was in the Tower.In 1351, King Edward, still needing funds for his wars, decided it was time to ransom the Scottish king.