Venue: Žofín Island (Žofín Hall)
Event type: Popular social musical and dance events
Date: 09/02/1859
Season: Carnival
Both sources noted the date of this event in the course of announcing the musical rehearsal for the occasion that took place on 9/1/1859. Notices were published in various issues of Prager Morgenpost prior to the event calling for the ball committee to meet daily at 11am at the Inn ‘At the Blue Star’. These contained no specific details relating to the ball itself.