subversive activities were ended by the payment of a crushing ransom of 150,000 marks of silver to the emperor, for Richard's release in 1194. Warned by Philip's famous message 'look to yourself, the devil is loosed', John fled to the French court. On his return to England, Richard was recrowned at Winchester in 1194. Five years later he died in France during a minor siege against a rebellious baron. gambling system Cambridge had their origins in this period. Amidst the order of learning and art, however, were disturbing new phenomena. The outbreak of Bubonic plague or the 'Black Death' served to undermine military campaigns and cause huge social turbulence, killing half the country's population. The price rises and labour shortage which resulted led to social unrest, culminating in the Peasants' Revolt in 1381. gambling system In November 1292, Edward and his 104 assessors gave the whole kingdom to John Balliol or Baliol as the claimant closest to the royal line; Balliol duly swore loyalty to Edward and was crowned at Scone. John Balliol's position proved difficult. Edward insisted that Scotland was not independent and he, as sovereign lord, had the right to hear in England appeals against Balliol's judgements in Scotland.