《辽史·本纪·卷十》
如有孝顺父母，三代同堂者，赐匾旌表其门闾。
有孝于父母，三世同居者，旌其门闾。
If there are people who are filial to their parents and three generations live together, they shall be rewarded with a plaque and a banner to proclaim their virtue.