We also say septante. Instead of soixante-dix.  I did not know this is only done in Belgium. Thinking about it, this aspect never drew my attention. Only thing is Belgium did not exist at the time of Nostradamus.  So where does the nonante come from then ?

http://www.sacred-texts.com/nos/index.htm

Look at quatrian IV 77 once.  This is always translated in the wrong way in English. Belsique is obviously Belgium, Belgique in the French from today. Still the translation is Blois soil.  Same question of course. Belgium did not exist when Nostradamus lived. Maybe I don't know the hisytory of my own country.  Julius Caesar however said that the Belgian people were the bravest of all in his Bellum Gallicum.

My father spoke French, my mother Dutch.  Belgium is in fact divided in a French part and in a Dutch part ( and also a very small German part ).  We are in a political crisis.  The French and the Dutch always fight.  In fact the one who tried to make the government for almost 200 days after the elections said the French were either unwilling or too stupid to learn Dutch. One of the reasons why there was such a big resistance after the elections from the French and why he finally failed.

I'm a Dutch native speaker.  Where I work I speak French and at home I speak English. Or sometimes some Russian words but not much.  However being Dutch is not good for a career where I work because we are a bit discriminated. If we sit at a table for a discussion or meeting and there is 9 Dutch speaking and 1 French speaking then everybody will speak French.  Because the French person is normally unable to speak Dutch. My friend from work is also French for example.  And it is no use trying to speak Dutch because she simply is not able to.

And about Nostradamus, the name of the future king of Belgium is by the way Filip.  That is not the same as Philip but it sounds the same.