[quote=@MrDidact]
They'd be first cousins once removed. Removed means a generation older or younger. 

Second cousins are children of your parent's first cousins. 

[@Greenie] Nice post! Was a pleasure to read. 

Hmm, I'm gonna be interested in seeing what happens when these Greyjoy bastards face off with the Greyjoy bastard who is reaving all over the place. 
[/quote]

According to your lore, that Greyjoy would be his cousin and considering the feud of their fathers, I cannot imagine they would be cordial.