Romanos I Lakapenos or Lekapenos (Greek: Ῥωμανός Λακαπηνός or Λεκαπηνός, romanized: Rōmanos Lakapēnos or Lekapēnos; c. 870 – 15 June 948), 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.
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