《左传·成公·成公九年》
九年春季，杞桓公来鲁国迎接叔姬的灵柩，这是由于鲁国的请求。
九年春，杞桓公来逆叔姬之丧，请之也。
In the spring of the ninth year, Prince Huan of Qi came to the State of Lu to receive Lady Shu's coffin, which was due to the request of the State of Lu.