>>150077112
>Calculus being Swiss
Well, he was inspired by August Piccard, https://en.wikipedia.org/wiki/Auguste_Piccard so that makes sense.
Haddock's castle, Marlinspike, is inspired by a castle in France (although the real-life equivalent is significantly bigger) https://en.wikipedia.org/wiki/Marlinspike_Hall so that also makes sense.
Plus, he is:
1- French-speaking
2- A captain
3- From a long family line of captains
So, although Belgium has an access to the sea, it is within the Flanders region, which is not primarily French-speaking. And Haddock's ancestor is called "François De Hadoque": "De" means "from", it indicates a French noble lineage. If it was a Dutch name it would be "Van". Plus, the first name "François" speaks for itself.
So Haddock is either French, or of French origins.