 Word of the revolt reached the King at Windsor Castle on the night of 10 June . He travelled by boat down the River Thames to London the next day , taking up residence in the powerful fortress of the Tower of London for safety , where he was joined by his mother , Archbishop Sudbury , the Lord High Treasurer Sir Robert Hales , the Earls of Arundel , Salisbury and Warwick and several other senior nobles . A delegation , headed by Thomas Brinton , the Bishop of Rochester , was sent out from London to negotiate with the rebels and persuade them to return home . 
