Namesakes
Chlothar I the Old
(a.k.a. Clotaire) (m) 497-561 
Frankish and French Kings 511-561
Chlothar II the Great
(a.k.a. Clotaire) (m) 584-629
Frankish and French Kings 584-629
Chlothar III
(a.k.a. Clotaire) (m) 652-673
Frankish and French Kings 656-673