Crowfeather's great grandparents, let alone grandparents, have not been confirmed. His mother is Ashfoot and his father is Deadfoot - the Erins have not made lineages beyond that. Crowfeather (along with Breezepelt, Hollyleaf, Lionblaze, and Jayfeather) are direct and very distant descendants of Wind, the founder of WindClan.
The term is hyphenated, as great-great-grandfather(grandfather's grandfather).
your great great great great grandfather
Yes, your dad's grandfather would be your great-grandfather. This means that your dad's grandfather is one generation above your grandfather, making him your great-great-grandfather. In other words, he is the father of your great-grandfather.
Your great great grandfather.
The 4th Great Grandson is the Great Great Great Great Grandson of the individual. Son Father Grandfather Great Grandfather Great Great Grandfather Great Great Great Grandfather Great Great Great Great Grandfather
Your great, great grandfather's son could be either your great grandfather or your great grand uncle, depending on whether his son was your grandfather or not.
Your great great grandfather.
Your grandfather's father is your great grandfather.
Great is a separate word and grandfather is one word great grandfather or great great grandfather
If your great great grandfather was the brother of someone else's great great grandfather then you and that other person are fourth (4th) cousins.
your great grandfather Your Great Great Grandfather? xx
Your great grandfather's nephew was your grandfather's first cousin. You are two generations removed from your grandfather and his cousin. Therefore you and your great grandfather's nephew are first cousins, twice removed.