The stampede at the Lanterna Azzurra (Blue Lantern) club was a tragedy that traumatised Italy in December 2018, leaving five teenagers and a woman dead.
Two hundred others, mainly young Italians, were injured in the panic in the crowded club in Corinaldo.
Six men face a court hearing in Ancona, central Italy, on Thursday on charges of manslaughter.
Prosecutors believe the panic was started deliberately to rob the crowd.
But it swiftly became a disaster, known in the Italian media as the “Corinaldo massacre”, with Pope Francis saying prayers for the victims in St Peter’s Square.
