The four kings in a deck of cards were designed in fifteenth-century France.
They represent great leaders from history, while the suits signify the cultures they led.
Spades honor the Biblical Middle East, and the king is David.
Clubs are for Greece, with the king being Alexander the Great.
Julius Caesar honors the pre-Christian Roman Empire as the king of diamonds.
Finally, hearts recall the Holy Roman Empire, and the king is Charlemagne.