What is a great-great-uncle?
A great-great-uncle is the brother of one of your great-grandparents. He is a child of your great-great-grandparents, three generations above you. Each generation back adds another 'great': your grandparent's brother is your great-uncle, and your great-grandparent's brother is your great-great-uncle. His children are each your first cousin twice removed.
Loading tool…
The calculator above is preloaded with this relationship. Change either person to work out any other connection, or open the full relationship calculator.
FAQs
Great-great-uncle or great-grand-uncle?+
Both name the same relative — your great-grandparent's brother. Genealogists often prefer 'great-grand-uncle', counting one 'grand' per generation.
What do I call my great-great-uncle's children?+
They are each your first cousin twice removed.
Does the calculator store my family details?+
No — it runs entirely in your browser. Nothing you enter is uploaded or saved on our servers.
Start with one relative and see what comes back.
Add what you remember and AncestorIQ searches for the rest. Free to build your tree for as long as you like.
No credit card needed. Your tree stays yours.


