Your aunt's husband is usually considered to be your uncle, but his brother is not related to you, so the brother's daughter is not related to you either.
its simple dont you see its ya mum yaaboo!
Yes, it should be, it is not considered incest because it is not by blood. You are marrying your aunt's HUSBAND'S daughter.
great nephew
their parents, brothers, sisters, cousins, aunts, uncles, and people who are related to them.
Your aunts and uncles are the sisters and brothers of your parents.
Your aunts and uncles are the sisters and brothers of your parents. So they are "blood related." But you also call the husband of your mother's sister your uncle, and he is not "blood related." So aunts and uncles are not always really related to you.
First cousins, twice removed. Aunts daughter is your cousin. Aunts daughters daughter is cousin once removed Aunts daughters daughters daughter is cousin twice removed.
People who are related to you: parents, brothers, sisters, cousins, uncles, aunts, grandparents, etc.
the daughter's cousin
Your great grandparents' brothers and sisters are your great great aunts and uncles.
yes
Your first cousin.