Wanders in that happy valley Through two luminous windows saw Spirits moving musically To a lute’s well-tunéd law, Round about a throne, where sitting (Porphyrogene!) In state his glory well befitting, The sovereign of the realm was seen. What does Porphyrogene mean ?

• A. Born to be free
• B. Inflicted with the disease Porphyria
• C. Of royal birth
• D. Wearing purple robes