Lusitania
Donor
Again the issue with the Italian trading nations is that they had a vested interest in maintaining their control over the caravan and trade coming across Ottoman Empire. Plus they had to content with both Spain and Portugal able to stranglehold the entrance to the colonies by controlling entrance to Mediterranean. The Portuguese are held Ceuta and Spanish held Cadiz so either had means to cut off both countries from their colonies. So neither were interested in finding an expedition. Lastly neither of those had the shipping technology or ships to cross the Atlantic. Their ships were smaller and more suited to shallow Mediterranean and black seas.So, perhaps O
So, neither Portugal nor England were interested. What about Genoa or Venice? Columbus went to both countries.