Poorer, unsanitary parishes and neighborhoods were located near the city wall and River Thames[17] while the Fleet Ditch area of London, around Fleet Prison, became the most heavily infected part of the city. A prisoner named William Cecil (not to be confused with Lord Burghley), kept in Fleet Prison by Queen Elizabeth's command, wrote that by 6 April 1593 "The place where [William] lies is a congregation of the unwholesome smells of the town, and the season contagious, so many have died of the plague." Government letters indicated that the plague was "very hot" in London by 12 June and that the queen's royal court "was out in places, and a great part of the household is cut off."[4][5] By August Queen Elizabeth's royal court had evacuated to Windsor Castle in order to escape the increasingly dangerous outbreak in London.