Your Great Great grandmother's sister is your Great-Great-Great-Aunt
Your great great grandfather's daughter is either your great grandmother, or she is your great great aunt.
Your grandmother's sister's great great great granddaughter is your second cousin twice removed.
She could be your grandmother. Or she could be your great aunt.
Your nephew's daughter is your great niece and you are her great Aunt (or Great Uncle).Correction:Your nephew's daughter is your grand niece. You are her grand aunt or grand uncle.
The child of your nephew is your great nephew (if a son) or your great niece (if a daughter).
Your daughter and your sister's son are first cousins to each other. Your sister's son's daughter (her granddaughter) and your daughter are first cousins, once removed.
At most, each person has: 1 Father 2 Grandfathers 4 Great-grandfathers 8 Great-great-grandfathers - etc. If there have been marriages between cousins, the number of individual ancestors may be reduced as one person fits tow or more places on the family tree.
Your great great grandfather.
She would be your great grandmother
i am my own grandfather
Your daughter's daughter's son is your great grandson, and you are his great grandfather or great grandmother.
Your aunt is your daughter's great aunt. Your daughter is your aunt's great niece.
She is his great grandniece.
Your grandniece's daughter is your great-grandniece.
Your brother's daughter is your niece. Her daughter is your great niece.
Your nephew's daughter's son is your great-great nephew. Your nephew's daughter is your great niece.
Your mother's brother is you uncle and your daughter's great uncle. Your daughter is his great niece.
Great-niece.
cousin