They are 1st cousins once removed.
If your great uncle is the brother of one of your grandparents, his wife is your great aunt but their nephews and nieces onher side are not related to you. Those nieces and nephews (and their children the great nieces and great nephews) have no ancestor who is also one of yourancestors.
It does not appear that Thomas Jefferson had any nieces or nephews. He had a daughter, a son in law and two grandsons. He also had an aunt and a first cousin.
The children born to your siblings are your nieces and nephews.
Uncle if you are male and aunt if you are female.
Yes a sister called Louise and a brother called Cristian
No, they`d be the second sisters great nieces and nephews
They are your great nephews and/or great nieces. Alternately, some people say grand-nephews, grand-nieces.
Your borther-in-law is your grandchildren's great uncle. They are his great nieces and great nephews.
Nieces and nephews are the children of your siblings.
Nephews and/or Nieces
They are your nieces and nephews and not your cousins
Nieces are the daughters of your brothers and sisters. Nephews are the sons of your brothers and sisters.
Mark Twain's nieces and nephews were the children of his siblings, which included nieces Ida, Susy, and Clara, and nephews Samuel, Frank, and Willie.
They are your grand-nephews and grand-nieces or great-nephews and great-nieces.
Yes, he did have nieces and nephews. Three of his brothers and three of his sisters lived to maturity and together gave him more than 30 nieces and nephews.
Your borther-in-law's children are your nieces and nephews. You are their uncle or aunt, as is your spouse.
Jane Austen never married and had no children.