150 battleships?
Pretty sure the Spanish Armada was <150 total ships, of which only a small subset would be the big galleon things. (And then my knowledge hits a wall, idk what the difference between a galleon and ship-of-the-line/battleship is)
I'm not sure how much to trust the rest of that website.
I think it was around 130, but yeah, perhaps a better source was needed. The beacons were real though!