Someone tell me the story behind agent 47 (video game)?

As a child I've played numerous hitman games and had lots of fun with them. Wether its messing around or being serious during gameplay I ended up liking Mr 47...when I played blood money I felt a little emotional when I heard Ave Maria playing when he supposedly dies in the end scene lol. This led me to want to know who the mr 47 is and how he responds to his life. Correct me if I'm wrong but This is what I know; 47 is a clone of a perfect assassin who undertakes contracts sent by the agency to be completed for money...in hitman 2 he turns good and wants to protect his priest friend from dying while he goes on a hunt for the main boss who kidnapped him, he leaves the sanctuary because he feels as though everywhere he goes leads to destruction and is not safe there. So he's basically a bad guy turning good I guess lol. Ok well I played hitman blood money and absolution years ago and today I just bought the ps4 version of hitman and am downloading it and I think this takes place before hitman absolution right? So I wanted to know what's the ideal approach or knowledge behind 47? How should I understand his motives who he is and what he's doing? Especially in this game? Lol much appreciated for the person who actually helps me out.