Romanos II

Romanos II (Greek: Ῥωμανός, romanized: Rōmanos; 938 – 15 March 963) was Byzantine Emperor from 959 to 963. He succeeded his father Constantine VII at the age of twenty-one and died suddenly and mysteriously four years later. His wife Theophano helped their sons Basil II and Constantine VIII ultimately succeed him in 976.

Source: Wikipedia — https://en.wikipedia.org/wiki/Romanos_II