Well. On Prince level there were some aggressive AI too. But due to a tech gap they were hardly dangerous for me.
Lagatha/Hatsjepsut had a worst enemy relationship with both the Russians and AssurUlven/SittingBull pretty much the entire game. A war with the Russians ended in a draw. Late game she attacked AssurUlven and capped him. She had a massive stack.
I initiated a war myself against Floki/Zara with berserkers and some cats. When longbows started to slow the process I capped him after a conquest of 5 cities, pretty good ones though. By that time I had Astro/Communism, the kick off for rush settling the new world. I needed all my production power to speed that up. My war veterans could now serve as city garrison and chase barbs.
TyrBlix/Augustus attacked and capped CharlesDeux/Brennus. Later the silly man attacked me, cuirs versus infantry. I had Floki as a buffer and could freely clean up stacks which was enough to cap both TyrBlix and CharlesDeux.
During the end game even Echbert/Frederic DoWed me and a few turns later seized the one city I forgot to garrison in the new World for 2-3 turns (pure luck for him of course, no cheating at all). I just let him be till he wants to pay for peace.
My goal this game was going to space (too many Vikings around on this map). I ran a very similar game to the always peace Indian game from Communism onwards. Funny enough I reached it ±10T later this game and pretty much everything else thereafter came ±10T later too, including the final victory. Apparently I haven't learned much the past half year.

Well, I chose to run US this time (no benefit from Rep until end game) to rush buy Granaries and Trade posts, and some factories where needed. After all no Spi trait this time for short slavery dips.
Glad I could finish this game just in time. My submission date says March 1 by the way while I submitted Februayr 28 (early evening CET).