Princess Danyang married Xue Wanche. Wan Che was so stupid that the princess was ashamed and didn't sit at the same table for months. Taizong listened and smiled. In order to buy wine, he called his son-in-law and Wan Che to talk calmly. With the sword of gambling on the ground, Yang was invincible and gave it to him. The Lord is happy, so is life.

The meaning of this passage is:

Princess Danyang, the sister of Emperor Taizong, married Xue Wanche. Because Xue Wanche was stupid, the princess was very unhappy and didn't sleep with him. Later, when this matter was known by Emperor Taizong, he thought of a way to solve it. On this day, Emperor Taizong held a banquet, gathered all his brother-in-law (or brother in law) together, and held a game of hand in hand while drinking (hand in hand was a board game introduced to China in Xuan Wudi during the Northern Wei Dynasty), and made a bet on Emperor Taizong's sword. Emperor Taizong and other son-in-law pretended not to win (invincible Yang) and deliberately lost the sabre to the couple. So Princess Danyang thinks that her husband is smarter than other people's husbands and becomes happy. The couple go home in the same car.