 Symeon Magister records the death of Helena on 14 January 940 , and on 2 February of the same year , Constantine married his second wife , Theophano Mamas . Constantine had a son , named Romanos , but it is not recorded by which of his two wives . This Romanos was castrated in 945 , after the Lekapenoi lost power , to prevent him from claiming the Byzantine throne . He nevertheless pursued a career in the court , eventually reaching the rank of patrikios and the post of Eparch of Constantinople . 
