The kings on playing cards are traditionally depicted as historical or biblical figures, although this is not always explicitly stated on the cards themselves. French and British decks from the 16th century were often said to represent:
- Hearts: Charlemagne
- Diamonds: Julius Caesar
- Clubs: Alexander the Great
- Spades: King David
While these associations are common, it's important to note that the specific identities of the kings are not universally agreed upon and can vary depending on the deck and the artist's interpretation. Some decks may not adhere to these traditional attributions at all. The figures are more symbolic representations of royalty than precise portraits.