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  ====Harrenhal====
  Harrenhal is an enormous ruined castle and is the site of many important events in the novels. Harrenhal was built by Harren the Black, after his conquest of the Riverlands, intending to make it the largest fortification ever built in Westeros. The castle has been described as so large that an entire army was needed to garrison it. The Great Hall had 35 hearths and seated thousands. Shortly after the castle was completed, Aegon the Conqueror's dragon slew Harren, his sons, and his entire army by setting the castle alight.
  Since then, the ruins of the castle have been occupied by a variety of houses, all of which eventually became extinct. As a result, the people of Westeros believe the castle is cursed. The logistical and economic difficulties inherent in keeping such an enormous castle maintained and garrisoned has made it something of a white elephant. At the start of the War of the Five Kings, the castle is in ruin, with only a fraction of it habitable, and held by Lady Shella Whent, the last of her House, who is stripped of Harrenhal when the Lannisters seize her castle. The castle changes hands repeatedly over the course of the novels, many of those holding it meeting unpleasant ends.