Yes, he is. If he's her husband then obviously hes your uncle.
Probably your niece-in-law.
One. She was the niece of a minneconjou chief, her name was Woodpecker Woman.
The English language has no relationship name for the wife of your great niece or great nephew.
Your husband's niece is also your niece.
You are your niece's aunt, if you are a woman.Any of your sisters who are not your niece's mother are also her aunts.The sisters of your niece's parent who is not your sibling are also her aunts.
Since it's her husband's niece the niece is just your sister's niece through marriage and not your niece.
No. Your wife's niece is also your niece, but the husband of the niece is not related to you or to your wife.
Your wife's niece is also your niece, and her daughter is your great niece. It is to be hoped that you do not have a relationship WITH her, merely TO her.
If you have a niece or nephew, it is their daughter.
Your husband's great niece is also your great-niece in law, so your great niece would be great niece in law to your husband.
Your niece's husband's daughter is also your niece's daughter and therefore she is your great niece. You are her great aunt or great uncle, depending on your sex. If your niece's husband's daughter is from a previous marriage, and so not also your niece's daughter, you are not related to her. Of course, if your niece adopts her, then she is your adopted great niece. If your niece married her husband while his daughter was very young and everyone has been treating her as your niece's daughter, then you can call her your great niece if you want, but that does not change the fact that you have no common ancestors and therefore are not related to each other.
Your niece.Your brother's daughter would be your niece and you'd be her uncle or aunt. Your sister's daughter would also be your niece. If your sibling had a son, he would be your nephew.