Complex sentence: The Conspiration des poignards (Daggers Conspiracy) or Complot de l'Opéra (Opera Plot) was an alleged assassination attempt against Napoleon Bonaparte, the members of the plot were not clearly established.
Split into simpler sentences: The Conspiration des poignards (Daggers Conspiracy) or Complot de l'Opéra (Opera Plot) was an alleged assassination attempt against Napoleon Bonaparte. The members of the plot were not clearly established.