 Unknown Father of Robert IV the StrongBorn estimatedIMATED between 750 and 810 Married/ Related to: N.N. Child: 1. Robert IV "The Strong", Margrave of NeustriaBorn between ± 815 and ± 830 Worms, Austrasia, Frankish Empire, died ± JulY 2, 866 Brissarthe, Anjou, Neustrie, Frankish Empire, approximately 36 years | |||