Seal to Isabella. The situation remained tense, however; Isabella was clearly concerned about Edward's supporters staging a counter-coup, and in November she seized the Tower of London, appointed one of her supporters as mayor and convened a council of nobles and churchmen in Wallingford to discuss the fate of Edward. The council concluded that Edward would be legally deposed and placed under house arrest for the rest of his life. This was then confirmed at the next parliament, dominated by Isabella and Mortimer's followers. The session was held in January 1327, with Isabella's case being led by her supporter Adam Orleton, Bishop of Hereford. Isabella's son, Prince Edward, was confirmed as Edward III of England, with his mother appointed regent. Isabella's position was still precarious, as the legal basis for deposing Edward was doubtful and many lawyers of the day maintained that Edward II was still the rightful king, regardless of the declaration of the Parliament. The situation could be reversed at any moment and Edward II was known to be a vengeful ruler. Edward II's subsequent fate, and Isabella's role in it, remains hotly contested by historians. The minimally agreed version of events is that Isabella and Mortimer had Edward moved from Kenilworth Castle in the Midlands to the safer location of Berkeley Castle in the Welsh borders, where he was put into the custody of Lord Berkeley. On 23 September, Isabella and Edward III were informed by messenger that Edward had died whilst imprisoned at the castle, because of a "fatal accident". Edward's body was apparently buried at Gloucester Cathedral, with his heart being given in a casket to Isabella. After the funeral, there were rumours for many years that Edward had survived and was really alive somewhere in Europe, some of which were captured in the famous Fieschi Letter written in the 1340s, although no concrete evidence ever emerged to support the allegations. There are, however, various historical interpretations of the events surrounding this basic sequence of events. According to legend, Isabella and Mortimer famously plotted to murder Edward in such a way as not to draw blame on themselves, sending a famous order (in ) which, depending on where the comma was inserted, could mean either "Do not be afraid to kill Edward; it is good" or "Do not kill Edward; it is good to fear". In actuality, there is little evidence of anyone deciding to