The Greystone Bastard (naming lore query)

[Nicku]

I thought it was just a bastard nickname at first, but he's not the only one;







No clue if there's more with these kind of 'last names', but from the looks of it I'd assume so? Maybe it's more of a title? Warname? (Since, so far -besides on the Haurchefant minion- I've only really seen these kind of names when they enter combat.. Not that I've been actively searching either, but still.)

[Kotori_Southburd]

There's also Drillemont The Honest

Greystone is probably an Ishgardian given title