What does "walloons" mean?

Walloons: A Romanic people inhabiting that part of Belgium which comprises the provinces of Hainaut, Namur, Liége, and Luxembourg, and about one third of Brabant; also, the language spoken by this people. Used also adjectively. [Written also Wallons.] "A base Walloon . . . thrust Talbot with a spear." Shak. Walloon guard, the bodyguard of the Spanish monarch; -- so called because formerly consisting of Walloons.