Heresy: What the guy holding the torch says it is.

The "likes boys" trait (Arse in the file) drops authority and later command. It's not a good trait for a general, but it's not as bad for a governor. I thought it would affect fertility, but it seems not. Not directly, at least. It might trigger something else. Hope for 4 kids (max you can have from one marriage) then if he's not good, throw him into dangerous situations in battle. Let him die a noble death! Or park him in a city as governor until he picks up really bad habits (like giving away tax money!)