Yup, that's the glaring thing I also saw without paying much attention. Also thought I'd be seeing a huge "Spain" in the late 1500 - early 1600s, since if it applied to the Spain-Portugal affair, it should also to the rise of Phillip II. Anyway, ignoring the errors or misplacements it was interesting to see, which is almost good enough :)
Ten years too long is what I call "a large error", for an event that lasted 6 years. Off by 150%.