Who the King of Diamonds in a card deck represents:

Julius Caesar

Source: Postitively Fifth Street, 1/1/1900

 
   
  Who King of Spades in a card deck represents:

King David

Source: Positively Fifth Street, 1/1/1900

 
   
  Who the King of Clubs in a card deck represents:

Charlemagne

Source: Positively Fifth Street, 1/1/1900

 
   
  Who King of Hearts in a card deck represents :

Alexander the Great

Source: Positively Fifth Street, McManus, 1/1/1900