Silmarillion - Chapter 22 - Of the Ruin of Doriath

[King Naugladur]

Originally Posted by Aiwendil

Yes, I agree that the passage from The Hobbit probably refers to this incident, and that it doesn't quite match the version in the published Silmarillion. It is more in line not only with the Lost Tales version of events but also with S, Q, the annals, etc. - in short, with all accounts written by J.R.R. Tolkien.

Yes, what a pity that JRRT did not revise "The Tale of the Nauglafring" and the account in the published "Silmarillion" did, as a result, contain much Gay Kay. Thus, we don't really know if the murder of Thingol inside his halls was an idea of JRRT, CT or Gay Kay.
King Naugladur.