Your grandson and your first cousin are first cousins, twice removed.
Your grandson and your second cousin are second cousins, twice removed.
and so forth.
Your first cousin's grandsons are your first cousins, twice removed.
Let's take this one step at a time to make it clear. Your parent and your gran's sister's son are first cousins. That should be obvious. When a first cousin has a child, that child to the first cousin is a "first cousin, once removed". (The "once removed" part indicates that the relationship is a different generational level.) In short, your gran's sister's son is your "first cousin, once removed".
your son is your great grandsons grandfather.
The relationship between you and your cousin's spouse is that of a cousin-in-law.
2nd cousin, but if it's your Dad's 2nd cousin... then your relationship with that cousin would be a 3rd cousin.
It depends on if you share a common ancestor. If not, there is no relationship.
Your grandfather's cousin is your cousin twice removed. Her husband has no direct relationship to you.
The sons and grandsons of a King or Queen are called are called Princes
It is your cousin also
There is no relationship. You do not share a common ancestor. Your mother's cousin would be your first cousin once removed.
it would be your cousin as well.
Your cousin's wife is not related to you.