The big puffy blue one that is normally a reward for doing a bunch of NLC quests, but isn't implemented that way. Not a fan of burning tickets on nearest town scrolls and forging simulators.
I got a Warrior's Throne from completing every NLC Quest a week ago. The New Source implemented several quests that wasn't previously available Old Source. I can't confirm if Sleepywood still gives Warrior's Throne, but I can confirm that finishing the NLC quest-lines gives the Throne.