Namesakes
Baudouin of Belgium
(middle name Karel) (m) 1869-1891 
Other Royalty 1869-1891 Belgium (prince)
Baudouin of Belgium
(middle name Karel) (m) 1930-1993
Other Royalty 1951-1993 Belgium (king)
Charles of Mount Argus
(a.k.a. Karel) (m) 1821-1893
Saints
Charles of Belgium
(a.k.a. Karel) (m) 1903-1983
Other Royalty 1903-1983 Belgium (prince)
Frederik of the Netherlands
(middle name Karel) (m) 1797-1881
Other Royalty 1797-1881 Netherlands (prince)
Gabriel of Belgium
(middle name Karel) (m) 2003-
Other Royalty 2003- Belgium (prince)
Herbert Lom
(middle name Karel) (m) 1917-2012
Notable Actors and Entertainers (actor)
Karel I
(m) 1316-1378
Bohemian Kings 1346-1378
Karel II
(m) 1685-1740
Bohemian Kings 1711-1740
Karel Albrecht
(m) 1697-1745
Bohemian Kings 1741-1743
Karel III
(m) 1887-1922
Bohemian Kings 1916-1918
Karel Čapek
(m) 1890-1938
Notable Writers
Karel Gott
(m) 1939-2019
Notable Musicians
Karel Kryl
(m) 1944-1994
Notable Musicians
Karel Lismont
(m) 1949-
Olympic Medalists 1972; 1976 marathon (silver/bronze)
Karel Miljon
(m) 1903-1984
Olympic Medalists 1928 boxing (bronze)
Leopold III
(middle name Karel) (m) 1901-1983
Other Royalty 1934-1951 Belgium (king)
Willem, Prince of Orange
(middle name Karel) (m) 1840-1879
Other Royalty 1849-1879 Netherlands (prince)