Your grandaughter would call your brother her great uncle.
You would be second cousins.
great great great
grandaughter
Grandaughter
Your husband's brother is your brother-in-law. Your brother-in-law's child is your niece or nephew and you are the child's aunt. Your brother-in-law's granddaughter is your great niece and you are her great aunt.
You still call your brother, your brother.
You would call your husband's younger brother a brother-in-law.
Your son will be a nephew to your brother, and will call him "Uncle".
what i call my father elder brother's wife
Brother
Brother
You can call your elder brother as 'ANNA' and your younger brother as 'THAMBI'