Speaking of the Starks, Jon Snow's new nickname has a significant meaning.
When Robb Stark was crowned King in the North back in season one, his men called him the Young Wolf. Now in season six, when Lord Wyman Manderly declared Jon Snow the King in the North, he referred to Jon as the "White Wolf." This nickname is more than just an allusion to Jon's albino direwolf, Ghost. It has ties to his bastard status.