《太平广记·卷二百零九·书四》
京都地区的杜度官任魏、齐宰相，开始时是以擅长草书而闻名。
京兆杜度为魏齐相，始有草名。
Du Du, a native of the capital area, served as the prime minister of Wei and Qi, and was initially known for his proficiency in cursive script.