The brothers Stephen and Constantine Lekapenos, having deposed their father as Byzantine emperor a few weeks earlier, were themselves overthrown by Constantine VII, their co-emperor.
Stephen Lekapenos
Stephen Lekapenos or Lecapenus was the second son of the Byzantine emperor Romanos I Lekapenos, and co-emperor from 924 to 945. With his younger brother Constantine, he deposed Romanos I in December 944, but they were overthrown and exiled a few weeks later by their brother in law, the legitimate emperor Constantine VII. Stephen lived out his life in exile on the island of Lesbos, where he died on Easter 963.
Constantine Lekapenos
Constantine Lekapenos or Lecapenus was the third son of the Byzantine emperor Romanos I Lekapenos, and co-emperor from 924 to 945. With his elder brother Stephen, he deposed Romanos I in December 944, but was overthrown and exiled by the co-emperor Constantine VII a few weeks later. Constantine Lekapenos was exiled to the island of Samothrace, where he was killed while attempting to escape sometime between 946 and 948.
Romanos I Lekapenos
Romanos I Lakapenos or Lekapenos, Latinized as Romanus I Lacapenus or Romanus I Lecapenus, was Byzantine emperor from 920 until his deposition in 944, serving as regent for and senior co-ruler of the young Constantine VII.
Constantine VII
Constantine VII Porphyrogenitus was the fourth Byzantine emperor of the Macedonian dynasty, reigning from 6 June 913 to 9 November 959. He was the son of Emperor Leo VI and his fourth wife, Zoe Karbonopsina, and the nephew of his predecessor Alexander.