Alan I of Dol
Alan I of was born before 1030.  He died after 1100.

 Flaald (Fledaldus) FitzAlan of Dol
Flaald (Fledaldus) FitzAlan of was born about 1046 in Dol-de-Bretagen,Ille-et-Vilaine, France.  He died after 1085.

 Alan II of Dol

 UNKNOWN Rhiwallon