I had to keep flipping back to the page that listed the characters
In mine, Prince Henry is called like three different names too
I personally find flashcards useful. I think with subjects like Physics, it's not very applicable. For example, I didn't really make flashcards for Chemistry or Mathematics and just did past paper questions instead since there wasn't much to memorise per say.
For content-heavy subjects like Biology, Business Studies, Studies Of Religion II, I definitely make flashcards since it lets me revise the main points of everything without mindlessly scrolling through my notes. It condenses everything nicely.
Of course, everything varies from person to person so there's no harm in experimenting. I don't make manual flashcards but rather use Quizlet which is helpful since it gives me a memory score which is pretty accurate and spams me to death with reminders lol.
I love Business Studies <3