T5's executive Paolo Vasile considered the series a failure before it aired and declared that it was an "unwelcome program".
Strongly criticized by the Spanish Union of Film and Audiovisual Technicians due to the shooting in Budapest.
T5 executives made the cinematography lighter and included legends with the names of the characters against the series creators' wishes.
All the extras are Hungarian and dubbed over into Spanish.
Filmed in the same sets as The Borgias (2011).