Question: Who was born first, J. J. Harrington or Maciej Radziwiłł?
Sentence (from "Maciej Radziwiłł"): While at Nieśwież, Radziwiłł wrote the libretto for Jan Dawid Holland's opera" Agatka, czyli Przyjazd pana"( ‘ Agatha, or The Master's Arrival ’) which was performed on 17 September 1784 during King Stanisław August's visit to Nieśwież.
Relevant evidence: No