Duke of Naples Sergius
Duke of Naples was born in 0792.¹   He died at the age of 72 in 0864.¹ 

 Drosu
Drosu was born in 0795.²   Drosu is no longer alive.

 Duke Of Naples Gregory
Duke Of Naples was born in 0825.²   He died at the age of 45 in 0870.² 

 Gregory
Gregory was born in 0825.²   He died at the age of 45 in 0870.²