Which opera has more parts including acts and tableaux, Le roi d'Ys or Stiffelio?
Le roi d'Ys: Le roi d'Ys ("The King of Ys") is an opera in three acts and five tableaux by the French composer Édouard Lalo, to a libretto by Édouard Blau, based on the old Breton legend of the drowned city of Ys. Stiffelio: Stiffelio is an opera in three acts by Giuseppe Verdi, from an Italian libretto by Francesco Maria Piave.
Le roi d'Ys