Suppiluliuma appears in a minor role in the novel "The Shadow Prince" by Philip Armstrong, as the grandfather of the hero, Tupiluliuma, in which he is Tudhaliya's nephew and adopted son. It is explained that he was reluctantly forced to take the throne and exclude his adoptive brother, the younger Tudhaliyas, as a result of his predecessor's descent into madness. He is regarded as one of the greatest of the Great Kings of Hatti, but is not a man to be crossed lightly.