The Gaulish language, and presumably its many dialects and closely allied sister languages, left a few hundred words in French and many more in nearby Romance languages, i.e. Franco-Provençal (Eastern France and Western Switzerland), Occitan (Southern France), Catalan, Romansch, Gallo-Italic (Northern Italy), and many of the regional languages of northern France and Belgium collectively known as langues d'oïl (e.g. Walloon, Norman, Gallo, Picard, Bourguignon, and Poitevin).