The daughter of your husband's brother is your niece.
Uncle
Your brother's daughters are your nieces
Your grand daughter's husband is your grandson-in-law.
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?
Your daughters husband is you son-in-law.
4 daughters, 3 sons.
Your mother's sister is your aunt and her husband is your uncle. If he has no brothers, his sister-in-law must be either your mother or another one of your mother's sisters (your aunt)
The brothers of your husband are your brothers-in-law.
Your brother's daughters are your nieces
Mary Lee Cantwell's husband was literary agent Robert Lescher. They had two daughters - Katherine and Margaret.
Son-in-law.