《宋书·列传·卷一百》
鲁定公四年，诸侯会集召陵讨伐楚国，沈子没有参加，晋国叫蔡国攻打沈子国，消灭了它，俘虏沈子嘉而归，他的后代便以国号为姓氏。
定公四年，诸侯会召陵伐楚，沈子不会，晋使蔡伐沈，灭之，以沈子嘉归。其后，因国为氏。
In the fourth year of Duke Ding of Lu, the princes gathered at Zhaoling to punish the State of Chu. Shenzizuo did not participate, so the State of Jin asked the State of Cai to attack and eliminate Shenzizuo, capturing Shenzijia and returning, and his descendants used the country's name as his surname.