Anyone's daughter's daughter is their grandchild, and your grandfather's brother is your great uncle. So this is a question about how you are related to your great uncle's granddaughter.
The grandchildren of siblings are second cousins to each other, so your great uncle's granddaughter is your second cousin, once removed.
It will depend on whether you share a common ancestor (is the grandfather the father of the son? If not, you are technically not related. If he was, it would be first cousin once removed.
Either no relationship (if your grandfather is only a step father) or first cousins once removed.
i am my own grandfather
She would be your great grandmother
Most likely they would not be related to you
natini
A second cousin.
Great Niece.
4 daughters, 3 sons.
your 5th cousin
your cousin
basiclly there called brothers .-.-.-.-.-.-. basically* for one... and two no, they wouldn't be called brothers. If it was their parents sons then yeah, but if it's the sons of brothers then they'd be cousins. That's practically like saying one brother got married and had a son, then the other did too and had a son as well. The relation of the sons would be cousins.
NO
Demeter was the daughter of Rhea and Cronus. Hades, Poseidon, and Zeus are her brothers from their union. Cronus had with Philyra sons Cheiron and the Ikhthyokentauroi, Bythos and Aphros. Demeter has six brothers.