A book closest to the movie Kingdom of Heaven (2007)

I am watching the Kingdom of Heaven (2007) the one with Orlando Bloom and Eva Green. I watched it a million times and I love it. Want to read a book closest to this movie as possible. Please recommend me something. It has to be from the time period and with Crusades focus.

Transport me to this era, this history is outrageous

by Cheap_Sheepherder327