Trade ships are not the only ships that can engage in trade red seal ships and nanban trade ships can also generate income from trade nodes. If their faction has trade relations with other factions, this generates large amounts of profits.
Trade ships generate trade goods by being placed on trade nodes. Once the population is about 30-50% Christian, you are given the option via the clan page to convert. Once you build a Nanban port your population starts becoming mixed religion. You might be interested: Readers ask: What Early Frankish Leader Helped Spread Christianity In Medievil Time? CastleĢ7 When can you convert to Christianity Shogun 2?
