Multiple choice general knowledge The death of which Swedish king inspired an opera by Verdi? Gustavus III Peter IV Zachariah II John III Reveal answer Fill a bubble to check yourself A Correct answer Explanation Giuseppe Verdi's opera 'Un ballo in maschera' (A Masked Ball) was inspired by the assassination of King Gustav III of Sweden in 1792. The king was shot at a masked ball in Stockholm and died several days later from his wounds.