• unspecified participants: unspecified

This event was listed in the Tagesanzeiger daily news almanac of Bohemia 4/1/1850 ‘Sunday, 6th January pm in the Spa Hall [Badsaale]: Musical rehearsal to Lenners’ Society Ball [Gesellschaftsballe]’. No further details were given by the source. The ‘Badsaale’ specified as the venue was the Spa Hall in the Malá strana. The notice was published again by Bohemia 6/1/1850. Bohemia 20/1/1850 published news that Lenners’ ‘Children- and Society Ball [Kinder- und Gesellschaftsball] was to take place not on 30th January as previously reported, but would be on 28th in the Spa Hall in the Little Quarter.