Graves

It only applies to sweet white wines.

And in that really only Sauternes and Barsac, which is sort of in that Graves region there.

And in terms of the villages, it applies to...

On the left bank, it's Pouliac, Margaux, Saint-Julien, Saint-Eustephe.

In 1932, we get what's called Cru Bourgeoisie, which is formed for all wineries in the Médoc, which is basically the entirety of the left bank there.

It starts off quite informal and becomes more formalized over time, but sort of is more focused on consistency and quality and environmental sustainability, at least in its modern incarnation.

You get like Graves, which is sort of the main white wine making area.

They have their own classification that then emerges.