I knew that French had some Germanic influence, but I did not know where it was from. I thought maybe it was from the Gauls. But it turns out it was from a Germanic group called the Franks who apparently ruled France for many years. There are a number of German languages called variations of the word Franconian in Germany, mostly right over the border from France – Moselle Franconian, Rhine Franconian, etc.
The piece is correct that northern France is more Germanic. Southern France or the Occitan region is more like Spanish or Catalan.
As a result of over 500 years of Germano-Latin bilingualism, many Germanic words became ingrafted into the Gallo-Romance speech by the time it emerged as Old French in AD 900. And after the Franks abandoned Frankish, the Old French they spoke tended to be heavily Frankish influenced, with a distinctively Frankish accent, which introduced new phonemes, stress-timing, Germanic grammatical and syntactical elements, and contained many more Germanic loans not found in the Old French spoken by the native Gallo-Romans.
Even though the Franks were largely outnumbered by the Gallo-Roman population, the position of the Franks as leaders and landholders lent their version of Old French a greater power of influence over that of the Gallo-Romans; it thereby became the basis of later versions of the French language, including Modern French (see Francien language).
It is for this reason that Modern French pronunciation has a rather distinct and undeniably “Germanic” sound when compared to other Romance languages, such as Italian and Spanish, and is a major contributing factor in why there exists a distinction between Northern French varieties spoken in regions where Frankish settlement was heavy (langue d’oïl) vs. those where Frankish settlement was relatively slight (langue d’oc).