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Your brother's daughter is your niece..and you are her AUNT.
Your neice by marriage
Brothers become blood-related brothers if they are born to the same 2 parents. A brother can be adopted and become a brother. Brothers are step-brothers if one parent of each boy marries the parent of the other boy. Brothers can emotionally become 'brothers' when two people are friends but they have no family relationship between them.
Your grandson is the great-nephew of your brother.
Your wife's brother is your brother-in-law, but in the English-speaking world the his wife is not related to you. It is common, however, for your children to consider her to be their aunt.
Your only recourse is to either sue, or report and have your brother charged with insurance fraud.
You are your brother's wife's brother-in-law, if you are male. But your brother's wife can also have brothers-in-law who are not related to you or to your brother. They would be the husband's of the wife's sisters.
Well, you are the brother in law to your wife's brother. There is no real title for your brother to her brother, they can be considered extented family members, though.
the blind beggar was a girl. they were brother and sister. the brother had no brother ..... just a blind girl beggar as a sister.
no they consider each other brother and sister
Your mother's brother is your uncle. Your father is his brother-in-law but he could also have other brothers-in-law. These would be men married to his other sisters, or the brothers of his wife. If they are men who married his other sisters, they are your uncles. If they are brothers of his wife, they are not related to you.