Fanciful and romantic rather than true to nature.
Byzantine, Lombard, Saxon, and, indeed, all the debased Roman
styles, between the time of Coustantine (350) and Charlemagne (800).
The dialect of Languedoc, which smacks of the Romance.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Romanesque from Fact Monster: