(The) Louis XVI was called “the Baker,” the queen was called “the baker's wife” (or La Boulangère), and the dauphin the “shop boy;” because a heavy trade in corn was carried on at Versailles, and consequently very little was brought to Paris.
“The return of the baker, his wife, and the shop-boy to Paris [after the king was brought from Versailles] had not had the expected effect. Flour and bread were still scarce.” —A. Dumas: The Countess de Charny, chap. ix.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894