I have played 3 games now where the following has happened. An opponent has a leader. I make many successful elite attacks without generating a leader. The opponents leader dies or is used, and on the next turn I generate 1 or more leaders. Is it an absolute fact that you only cannot generate a leader when you already have one yourself? I wonder if leader generation is possible if another leader exists at all, irrespective of the civ that generated it. Just one post to say that someone has generated a leader when another civ already has one in existence will put this to bed for me.