What do the patterns in the playing cards represent?

Spades: spring, symbolizing peace.

Hearts: summer, symbolizing love.

Squares: Autumn, symbolizing wealth.

Plum: winter, means happiness.

King of Hearts: The king in the K of Hearts is Charles the Great, who founded the Charlemagne empire, and is the only unshaven king in playing cards.

King of diamonds: The king in the K of diamonds is Julius Caesar of ancient Rome.

King of Clubs: The K of Clubs depicts Alexander, who founded the Alexandrian Empire, which spanned Europe, Asia and Africa. The K of Spades depicts David, the father of King Solomons of Israel in the 10th century BC. He was skilled at playing on the harp and wrote many hymns in the Bible, hence the harp design on this card.

Queen of Spades: The Q of Spades is the Greek goddess of wisdom and war, Pallas, Athena, who is the only one of the four queens to hold a weapon.

Q of Hearts: The Q of Hearts was named Jules, a native of Bavaria, Germany, who married Charles I of the Stewart dynasty in England. Later, Charles I was externally capitalized for practicing brutal rule, and Jules remarried to England.

Plum Q: Plum Q symbolizes a story that the Lancaster royal family of England is symbolized by the red rose, and the York royal family is symbolized by the white rose. The two royal families after the rosebud war, to achieve reconciliation, and the two sides of the rosebud knot together. That's why this queen is holding a rosebush in her hand.

Q of Diamonds: Q of Diamonds is the Queen of Lycor, who was the daughter of Jacob. Jacob was the father of Joseph in the Old Testament Bible, and he **** had 12 sons who founded 12 tribes in Israel.

The Jack of Spades and the Jack of Diamonds: the Hockla and Loran, squires of Charles I, respectively.

Jack of Hearts: for Rahaiya, squire of Charles the Worker VII.

J of clubs: is Lancelot, the famous knight from the King Arthur stories.

Extended information:

The earliest card game was invented by Zhang Sui, an astronomer in the Tang Dynasty, and was initially known as the "Leaf Game," because the cards were only the size of leaves. In the Song Dynasty, Ouyang Xiu, a writer, also wrote about "leaf play" in his "Records of Returning to the Field". During the Yuan Dynasty, Marco Polo traveled to China and worked as an official at the court, where he became close to upper-class intellectuals and learned the game.

When solitaire came to Europe, it was a luxury item for the aristocrats, but because it was cheap, easy to play and easy to learn, it soon became popular among the people. Europeans improved the card game according to their own culture and traditions, and eventually came up with "playing cards".

Beginning in the 16th century, a popular card game in the West known as "winning cards" evolved in the early 17th century into the Whist card game similar to bridge, and in 1894, bridge was created in the London Club in England, which evolved into the current poker game.

Baidu Encyclopedia - suits

People's Daily Online - artifact playing cards