You are cousins
they were close friends
Father and daughter.
You are their aunt or aunt by marriage.
The offspring of your first cousin is your first cousin once removed.
Cousins
Your daughter's daughter is your granddaughter, and you would be her grandmother or grandfather.
2nd cousin
She is your first cousin.
Your daughter is your brother's niece. Your brother is your daughter's uncle
Your nephew and your daughter are first cousins.
my great grand-daughter
she would be my cousin
You are First Cousins
You are cousins
daughter
Your daughter and your niece are first cousins to each other.