Constantine VIII (Greek: Κωνσταντῖνος Η΄, Kōnstantinos VIII) (960 – 11 November 1028) was the Byzantine Emperor from 15 December 1025 until his death in 1028. He was the son of Emperor Romanos II and Empress Theophano. He was nominal co-emperor for 63 years from 962, successively with his father, his stepfather Nikephoros II Phokas, his uncle John I Tzimiskes, and his elder brother Basil II.