BoomTown festival death: Lisa Williamson 'found hanged in festival toilet'
The 31-year-old, who was at the event with her husband, was treated by medical staff on site and taken to hospital but later died.
The inquest, which was adjourned, heard the cause of death was hanging.
Up to 38,000 people attended the four-day event at Matterley Bowl near Winchester.
Last year, Ellie Rowe, 18, died after taking the drug ketamine during the festival.