Hello! I'm planning on apping this character, Balian of Ibelin from Ridley Scott's Kingdom of Heaven here, and I just remembered to ask: are highly fictionalized versions of real people allowed to be apped? In this case, Balian really did exist, and he really did help defend Jerusalem, but he was born a nobleman and not a blacksmith. There are many other differences as well, because KoH was not meant to be a biographical film, but a story and so even though real historical characters do appear in the film, it's not a play-by-play of their lives and they are highly altered.

For more examples of differences between the two, Here's a pretty good summary, though it doesn't include everything.