Abraham married his half sister Sarah.
Gen:20:12: And yet indeed she is my sister; she is the daughter of my father, but not the daughter of my mother; and she became my wife.
Yes, it is legal for your sister to marry your husband's brother.
No they ain't brother and sister
Your sister's husband is your brother-in-law. The daughter of his sister is his niece, and your sister's niece, but is not related to you. Assuming the child was born to the woman before she met your brother, the daughter of the woman whose brother married your sister is not related to you.
Your fiance's sister is not related to your brother or sister. However, once you are married and your fiance is your wife, she will be their sister-in-law and they will be her brother-in-law and sister-in-law.
Your brother-in-law.
it is your brother in-law
No
Yupp she has a half brother and half sister which are married (well the brother) and moved out.
If your sister goes with your brother then it's incest and they would both be your siblings. If a girl is dating your brother and they get married this would make her your sister-in-law.
Michelle has a brother, a half sister, a step-sister, a step-brother, and a step-sister-in-law, and a sister in law. Her sister-in-law is Promise, who is married to her brother.
Your brother-in-law is not a blood relation, and neither is his brother. So yes, you could marry a brother-in-law's brother, if you wanted.My grandmother "R" married a man, "H"."H's" sister, "A", married my grandmother's brother, "L".So brother and sister in one family, married sister and brother of the other family. Love occurs in the strangest ways!
Your sister-in-law's husband is never your brother-in-law. He can be your brother, when your sister-in-law has that relationship to you because she is married to your brother. You could also have a sister-in-law who is the sister of your spouse. But then her husband is not related to you.