What relatives does Zheng Xiao refer to?

Filial piety is mother, father and child. It's been three years. It's 28 days now. After April 7th, filial piety will be removed. 28 days means 28 months. The ancients died for three years, in fact, 27 months at most, and there was no leap month for 25 months. At least 12 months. Because New Year's Eve is last year and New Year's Day is next year. New Year's Eve counts as one year, and New Year's Day counts as the second year. One year later, it is the third year after the first day of the New Year's Day. In the third year, I was in mourning. And it was during the Spring Festival in China, not Dai Xiao. So after the New Year, it means that three years of filial piety is over.

Zheng Xiao also refers to old masters, granddaughters, male brothers and sisters. Both were in the Cui Zi era. In Cui Zi, it is 14 days. Which is erqi. Theoretically, the period of filial piety is one year 12 months. In reality, it is really a year of filial piety, 10 month.

Filial piety also refers to grandmothers, granddaughters, menstruation, uncles, aunts, uncles, nieces, nieces and nephews. It's September. It's 14 days now, and it's also February 27th. Cui Zinian is one month away from September. The time is very similar.

Aunt, uncle, aunt, uncle, niece, grandson, niece, grandson, sister-in-law, brother-in-law, brother-in-law, are all small achievements in May. It's a seven-day coolie now. These two days are not bad.

Cousin/cousin's uncles and nephews are all in March. It's 3-4 days now. After the funeral, we will pack our mourning clothes.

For people who are not related by blood, there is no clothing.