Namesakes
Charlemagne
(a.k.a. Carolus) (m) 742-814 
Saints
Carlo Borromeo
(a.k.a. Carolus) (m) 1538-1584
Saints
Karl XII
(a.k.a. Carolus) (m) 1682-1718
Swedish Kings and Queens 1697-1718
Carl Linnaeus
(a.k.a. Carolus) (m) 1707-1778
Notable Scientists and Inventors
Thom de Graaf
(middle name Carolus) (m) 1957-
Notable Politicians and Statespeople
Bob de Jong
(middle name Carolus) (m) 1976-
Olympic Medalists 1998; 2006; 2010; 2014 speed skating (silver/gold/bronze)