If your great grandmother's husband is your great grand father, as is usually the case, then his great great nephew is your third cousin, and his great great great great great nephew is your third cousins, thrice (3 times) removed.
If your great grandmother's husband is not your great grandfather, then you are not related to any of his nephews.
Your great uncle is the brother of your grandparent.
Your great uncle's great uncle is the brother of your great-great grandparent, and is therfore your great-great-great uncle. This is when looking at relationships through people who are related to you.
Your great aunt's husband is your great uncle. His great nephew could be:
Your great uncle is the brother of your grandmother or grandfather. Therefore you and your great uncle's granddaughter share one or two great grandparents, and you are both the same number of generations separated from that shared ancestor.
So you are second cousins to each other.
You and your great great uncle's grandchildren are second cousins, once removed, to each other.
Your great grandmothers great nephew is a second cousin to one of your parents, and therefore is your second cousin, once removed.
Your great great uncle's grand son is your parent's second cousin and your second cousin, once removed.
You and your great great aunt's great grandson are third cousins.
Your great great uncle's great granddaughter is your third cousin.
not to be complicated , but if you have an uncle--> he has a nephew--> as you can see that's not complicated . And if you ask what is a uncles NEPHEW related to an uncles grandfather. in what way ....i would say the nephew is is the great gandfathers great grandson.
Your uncle is your child's great uncle and your grandchild's great great uncle. Your grandson is your uncles great great nephew.
Your grandfather's brother's grandson is your great uncle's grandson. The grandchildren of great aunts and great uncles are your second cousins.
The son of your grandson is your great grandson. You are his great grandmother or great grandfather.
You and your great uncle's grandson are second cousins.
You and your great great aunt's great grandson are third cousins.
Your grandson and your great great niece are second cousins, once removed, to each other
Your daughter and your uncle's great great grandson are second cousins, three times removed.
Your great great great uncle was the brother of one of your great great grandparents. His grandson is the second cousin of your grandparent who is descended from that great great grandparent. Therefore his grandson is your second cousin, twice removed.
Your great-grandmother's first cousin's grandson is your third cousin once removed.
Your aunt's great great great grandson is fourth cousin to one of your parents and therefore your fourth cousin, once removed.
He is Mademe Zeroini's great-great-great-grandson