The English language does not contain a specific term to describe a relationship between you and your nephew's wife. The culture does not consider her to be related to you.
Most aunts and uncles would merely call her "my nephew's wife."
If your great uncle is the brother of one of your grandparents, his wife is your great aunt but their nephews and nieces onher side are not related to you. Those nieces and nephews (and their children the great nieces and great nephews) have no ancestor who is also one of yourancestors.
Your nephew's wife is your Niece-in-Law, whether she is caring for a child from a previous marriage or not. Few people would care to be that precise, however, so most will probably just call her your Niece.
The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.
You can date anyone you like, even a sibling. Incest or other undesirable relationships develop only if your dating moves on to sexual activity.Many people who are related to your uncle are also related to you, but only some of them will be so closely related as to make a sexual relationship forbidden. Those people who are related to your uncle because they are the nieces, nephews, great nieces, great nephews, etc., of his wife are not related to you at all.
Your brother's wife is your sister-in-law. The English language has no relationship term for the brother of your sister-in-law. He is not considered to be related toyou, although he is your brother's brother-in-law.
Your wife's nephew is your nephew, but the English language has no relationship term for your nephew's wife. Just call her "my nephew's wife."
If it's your sister then your sister, if it's your brother's wife then you sister-in-law
Your nephew's wife is simply your nephew's wife. There is no special term in the English language for that relationship.
Nephews are the sons of your brother or sister. Therefore nephews who are not brothers to each other are first cousins to each other.
Great nephew
No. Your wife's niece is also your niece, but the husband of the niece is not related to you or to your wife.
He is their Uncle and they are nieces and nephews.
Your brother's wife's kids would be your nieces or nephews.
Second cousins.
niece in-law
If your great uncle is the brother of one of your grandparents, his wife is your great aunt but their nephews and nieces onher side are not related to you. Those nieces and nephews (and their children the great nieces and great nephews) have no ancestor who is also one of yourancestors.
The nephew of a wife and the nephew of her husband are not considered to be related to each other. However, both are nephews of the wife and the husband, and the wife and husband are aunt and uncle to both nephews.