If I'm not mistaken in otl Columbus sold his voyage on the idea that he would land in India/China, which would generate new wealth for his sponsors.
Yes, well, to my recollection he was trying to go where the profit was, the ultimate objective what the Great Khanate, basically Yuan Dynasty China, that he incorrectly assumed still existed, but, his immediate target was the land he had seen illustrated as the furthest point east off of Asia, Cipangu, aka Japan. So he had a very specific place in mind he was going to, based on maps he had seen. He was aiming for certain latitudes that were in and near the tropics.
The maps he had seen incorrectly placed Cipangu/Japan just at or above the Tropic of Cancer. Because of the length of the journey, Colombus saw this as a necessary and realistic first stop in the Far East, and he expected he could probably do some trade in fine silks, pottery and maybe some jade there.
But of course, he hoped to use it to reach Cathay (China) of the Great Khans and trade in silks, and from there, reach alternately the Indies or India, and trade in spices.
That's what I was thinking.
I'll be sharing what I was thinking when I asked these questions in post #5
I think it depended on the relations between the two countries. I know that Spain and Portugal had amiable relations during the 1490s which is why Columbus had no problem. I'm not sure what relations between France and Spain were like during this period but I could see the Portuguese letting Columbus stop off at the Azores (they were fairly neutral with the French in otl if I'm not mistaken).
This sounds like a sensible answer to me, it depends on the relationship at the time, how good or bad it is, but you can't assume cross-over to third party ports is an automatic no-no, except in wartime.
Alright, thanks for responding.
Here I will "show my hand" and say where I am trying to steer everyone towards, and steer them away from, in my comments in post #5.
I think Columbus, even if he is working for France, even if he is working for England, even if he is working for the Holy Roman Emperor, and is setting out with his ships from one of their native ports, is trying *very hard* to reach a destination that is in the northern tropics. That's because that is where he thinks Cipangu is, and where there are cities, merchants, people with silk, pottery, spices, not random people or horsemen living in snow, woods or grassland.
Columbus is also wanting to make best use of the currents and winds at the "horse latitudes" around the Canary Islands. So even if setting forth from Brittany or Bordeaux, he is going to head a bit south to that general area, before catching the winds and heading straight west.
Now starting from France, that presents a problem in that it lengthens his already very long journey. So, he will stuff his ships with even more provisions and tell the crew to expect it to take even longer. Or, to make up for supplies consumed in the early going, he will stop somewhere, like the Castilian Canaries, or Portuguese Madeira, to replenish and stock up on water and dry goods supplies for the dash across the Atlantic.
So he will need a good advance of silver or gold coin, and local merchants where he stops can make a lot of money. France-Castille relations *might* have been OK in 1492, but they would get bad real soon over Italy, so they might be a bit to "complicated" to count on the Canaries as a stop. But Portuguese Madeira is nearby, and relations with Portugal are more stable and less conflictual, so there should not be any problem other than high prices, and the Portuguese see what you're doing/where you're headed.
Then Columbus goes on his merry way, discovers the Caribbean, thinks it's great, kidnaps people, finds *some* gold, exaggerates the wealth he does see, heads on home, stops off in the Portuguese Azores, and gets back to France, and tells everyone, "
La Merde, C'est Moi" to a hero's welcome, and gets further sponsorships. When he does more voyages, he goes back to the scene of the (literal) crime, the Caribbean, and pokes all around it, and that is the center of initial French exploration and colonization, not really more northerly latitudes in North America. The French will check that out eventually, but they will be more drawn to making a "project" out of Mexico than Florida for obvious reasons.
By the way, people have posted the Marco Polo map and overlaid it on world maps here before, to give an idea of what Columbus was *expecting* to run into, and they demonstrate that from Europe he would definitely need to head very much
southwest, not just blindly
west, to reach any of the notably fabled wealthy or interesting parts of the east, instead of nondescript land that is just sort of "there be Tartars".