Is my sister-in-law's husband my brother-in-law?

Answer 1

Your sister-in-law is either the sister of your spouse or the wife of your brother.

If your sister-in-law is the wife of your brother, then her husband is your brother, not your brother-in-law.

If your sister-in-law is the sister of your spouse, then her husband is not related to you.

In either case her husband is your children's uncle.

Answer 2

One answer:No.

William and Alice are married. William and Carol are siblings. Alice and Frank are siblings.

Carol is Alice's sister in law. Frank is William's brother in law. Carol and Frank are not related to one another.

Another answer:Yes. The term "in-law" comes from canon law (as opposed to common law). Canon law is law that governs the conduct of a faith's membership. In this case, the term refers to a relationship that is "not natural," that is, not by blood. So, your in-laws are granted a relationship that is between having no relationship and having blood relationship to you. Anyone of a blood relationship on the "in-law" side of the relationship are also considered your in-laws (father-in-law, son-in-law, brother-in-law, etc.).

Answer 3

There are two ways you can have a brother-in-law. The brother of your spouse is your brother-in-law and the husband of your sister is your brother-in-law.

If the husband of your sister has a brother, that brother is not related to you, although he is your sister's brother-in-law.

If the brother of your spouse has a brother (who is not married to you) that brother is also your brother-in-law. But the relationship is because both are brothers of your spouse.

Answer 4

Your brother is your husband's brother-in-law but is not related to your husband's brother.

Answer 5

Yes. A man's brother-in-law can be either the brother of his wife or the husband of his sister.