I'm a 28yo king of Eire with an old wife who can no longer bear children. (Don't ask me how I got here, things happen in Crusader Kings 2.)
I've tried to get rid of my wife, but the Pope won't give me a divorce. Neither can I find backers to kill her (I suppose the fact that she is a duchess somewhere in central France adds to that).
One option is just to let her die of natural causes (she's 20 years older than me), since I could remarry after and have a new young wife bear children. This will likely incur some period of regency, but oh well.
The other one is to get some lovers, sire bastard sons, and legitimize them. Worse than natural heirs, but not a game over. In this case, how do I increase likelihood of getting lovers?
When I die, the game is over and I don't want that to happen. Hence, my question is, how do I get an heir from here? Which of above options should I follow and is there a better way?