《史记·三十世家·孔子世家》
孔子四十二岁那年，鲁昭公死在齐国的乾侯，鲁定公即位。
孔子年四十二，鲁昭公卒於乾侯，定公立。
When Confucius was forty-two years old, the Duke Zhao of Lu died in Qianhou of the Qi state, and the Duke Ding of Lu succeeded to the throne.