Yes all "Avatars" not taken by an actual being are controlled by the "Game Master" (yes that's me) but if he is your Avatar, he is virtually untouchable by anyone else including me. If you (your character) has a son it may be worked out that he will become your "aid" and you can then control him if you would like. However to have aids you must be claimed owner of a province which in BtSH will be called a "Provincial Dictator" and you will be aloud to have 5 aids actually who can form a house around you to better your prominence in the game as civil war is a possibility. If you are not in the Royal Family, you will earn your way their by gaining a Man of The Hour (in combat most likely) and if the benefactor accepts you and adopts you, then that player may begin having sons as well.