I Ranulph
I was born about 0835 in Poitiers, Aquitaine.  He died in 0875.

 II Ranulph
II was born about 0855 in Poitiers, Aquitaine.  II is no longer alive.

 Gauzbert de Poitiers
Gauzbert was born about 0857.  Gauzbert is no longer alive.

 Ebles de Poitiers
Ebles was born about 0859.  Ebles is no longer alive.