As the tin says, what if Constantine and his daughters, at least the younger two since the elder was a nun, predecease Basil by 5-7 years. Do you think Basil would take it upon himself to marry and have a child or would he simply designate an heir? If so, who ?
Possible impacts of no Constantine, Zoe and Theodora ?
Possible impacts of no Constantine, Zoe and Theodora ?