ul·tra·di·an 
(ŭl-trādē-ən)
(ŭl-trādē-ən)adj.
Relating to or exhibiting periodic physiological activity that occurs more than once every 24 hours.
[ULTRA- + (CIRCA)DIAN.]
- Charles I
- Charles II
- Charles I or "Charles the Great."
- Charles IX
- Charles James
- Charles John Huffam
- Charles Joseph
- Charles Louis Napoleon Bonaparte.
- Charles Lutwidge
- Charles Marie
- Charles Martel
- Charles Martin
- Charles McArthur Ghankay
- Charles Monroe
- C(harles) P(ercy)
- Charles Pierre
- Charles Proteus
- Charles Rennie
- Charles Richard
- Charles River
- Charles Robert
- Charles Samuel
- Charles Sanders
- Charles Scott
- Charles's law