Everyone has a grandfather, since they are your father's father.
Your Grand father's Grandfather5's Grandfather's Grandfather's Grandfather's Grandfather's Grandfather's Great Grandfather created History.
The term is hyphenated, as great-great-grandfather(grandfather's grandfather).
The singular possessive form of the word "grandfather" is "grandfather's."
Your great great grandfather.
Your grandfather's father is your great grandfather.
Your grandfather's father is your great grandfather.
Your father's grandfather is your great grandfather.
Your grandfather's father is your great grandfather.
Grandfather in Kikuyu is "Jiin" for paternal grandfather and "Njeri" for maternal grandfather.
The possessive form of the noun grandfather is grandfather's.Example: I'm spending the weekend at my grandfather's farm.
He is your Grandfather, and is your son's Great-Grandfather.
He would be your paternal great grandfather