Edmund William Gosse and an anonymous contributor, 1911 Encyclopædia Britannica, Volume 28… (1911)
“ It is supposed that as early as the 12th century the idiom of the people may have been used in songs which are now lost, unless echoes of them are preserved in the curious Noëls, partly in French, partly in patois, which were orally collected by M. Doutrepont and published in 1888. Several Flemish works in old French, containing Walloon expressions, and in particular the so-called Poème moral of the 13th century, have been claimed as precursors of a local literature, but they are really to be considered as composed in French with a certain admixture of Liégeois phrases. ”
