That's like asking if your you could be the father OF your father... so no...
They are both hard-headed when the grandmother wants to take away the shoes from the granddaughter and the granddaughter refuses
If you are a woman, you are your great grandmother's great granddaughter so your son is the son of her great granddaughter. But there are other possible relationships to other of her great granddaughters.The great granddaughter could be your sister. Then your son is her nephew and she is his aunt.The great granddaughter could be your first cousin. Then she and your son are first cousins, once removed.The great granddaughter could be your second cousin. Then she and your son are second cousins, once removed.
You and the granddaughter of your great grandmother's first cousin are third cousins, once removed.
Well I am Maltese and I always called my grandmother Nana because that is how you say it in Maltese !
You would be 2nd cousins, assuming that the brother's wife's granddaughter is also the brother's granddaughter. If the granddaughter is not the granddaughter of the brother, there is no relationship.
great uncle
Your Grandmother's sister is your great aunt. Her grand daughter is your second cousin and her great granddaughter is your second cousin, once removed.
Your third cousin.
Under any normal situation, a grandmother should be allowed to share a room with her granddaughter at any age.
Your grandmother's brother is your great uncle. Your great uncle's son's great granddaughter is your great uncle's great great granddaughter. Your great uncle's great great granddaughter is your second cousin, twice removed, and is your daughter's third cousin, once removed.
Your great grandmother's great great granddaughter could be your:daughterniecefirst cousin once removedfirst cousin twice removedsecond cousin once removed
Granddaughter is a singular, common, female noun.