Sir Pleb, I did some more tests on multiple declarations of war. Target civ, +4 for the first war, then after declaring war the second time (after waiting 20 turns), I was at +8, so that was +4 for each war. For the 3rd war if I waited another 20 turns after the 2nd war, I was now at +12. Nuetral civ: +1 for the first war, +2 for the second war, and the third war had no effect. However if I declared war on someone else, I would now be at +3, so it seems there is a cap of +2 that nuetral civs will add on for each civ you had declared war on two or more times. But in one test I did, I waited ~40-50 turns in between the second and third wars, and it looked like I recovered a point from the nuetral civ and 4 points from the target civ. So it might possibly be that the 2nd war penalty could be forgotten if you stay at peace with everyone for 40-50 turns as some sort of 'peacenik' bonus.