Romanos Lekapenos seizes the Boukoleon Palace in Constantinople and becomes regent of the Byzantine emperor Constantine VII.

March 25, 919

Romanos Lekapenos seizes the Boukoleon Palace in Constantinople and becomes regent of the Byzantine emperor Constantine VII.

Romanos I Lekapenos, Latinized as Romanus I Lecapenus, was a Byzantine-Armenian naval admiral who became Byzantine emperor and reigned from December 919 until his deposition on December 944.