Harrenhal is a large castle built in the Riverlands on the north shore of the God’s Eye Lake. It was commissioned by King Harren’s grandfather who had invaded from the Iron Islands and conquered the Riverlands. The castle was completed during King Harren’s rule and he named the castle after himself.
Although the castle was given to various noble families, they all died out leading to an assumption that the castle was cursed.
Prior to the beginning of the story a tournament was held at Harrenhal where Rhaegar Targaryen shocked those present by crowning Lyanna Stark Queen of Love and Beauty rather than his wife Elia of Dorne.