 Following his death , his body was transferred to Constantinople and buried in the Church of the Holy Apostles there . He was succeeded by his three sons born of Fausta , Constantine II , Constantius II and Constans . A number of relatives were killed by followers of Constantius , notably Constantine 's nephews <unk> ( who held the rank of Caesar ) and Hannibalianus , presumably to eliminate possible contenders to an already complicated succession . He also had two daughters , Constantina and Helena , wife of Emperor Julian . 
