Bladorthin, he is a mystery character from most likely Dorwinion. Also maybe Thranduil's brother who supplied him with wine? Maybe a friend of the blue wizards who helped against the Easterlings but failed??? All help will be thanked.
The Hobbit, in the Mirkwood Elvenking chapter.
There's not really a lot to tell about...
- '... the spears that were made for the armies of the great King Bladorthin (long since dead), each had a thrice-forged head and their shafts were inlaid with cunning gold, but they were never delivered or paid for...'
... although Bladorthin used to be the name of the wizard in The Hobbit, before revised to Gandalf.