《南齐书·志·卷十》
另外诸侯属下大夫的妻子要为诸侯的夫人服七个月的总衰，此制轻微疏远，所以不能尽礼。
又诸侯之大夫妻为大人服繐衰七月，以此轻微疏远，故不得尽礼。
In addition, the wives of the vassal states' subordinate officials will mourn for the vassal states' wives for seven months, but this is a light and distant system, so it cannot be polite.