How are you related to your great aunts granddaughter?

Answer 1

Your aunt's son or daughter is your cousin. Your cousin's children are one generation removed from yours, so your cousin's children are your first cousins once removed. They are also your aunt's grandchildren. The children of your first cousin once removed would be your first cousins twice removed. They are also your aunt's great grandchildren. Second cousins are of the same generation and share the same great grandparents.

Your relative ----------------------------------Your relationship

Aunt ----------------------------------------------Nephew/niece

Aunt's child --------------------------------------First cousin

Aunt's grandchild -------------------------------First cousin once removed

Aunt's great grandchild -----------------------First cousin twice removed

Answer 2

Your grandfather has a sister. That makes her your great aunt.

A niece is a child of your brother or sister, or the brother or sister of your spouse.

Since your great aunt is your grandfather's sister, her niece could be your mother, who is your grandfather's child, your mother's sister, or your mother's first cousin, the child of your great aunt's sister or brother who is not your grandfather. So your great aunt's niece is either your mother, your aunt, or your first cousin once removed.

Answer 3

Your great aunt's aunt is your great great aunt.