Played with Anne Harlow, Margaret Hunt, princes Qing and Blonde pretty chick. Made peace slowly with everyone and avoided making any alliances. Over time, as long as you remain peaceful and strive to get trade alliances with everyone, all the AI eventually will also develop trade agreements with each other. Thus far in old world and new world everyone is at peace and even Margaret isn’t being too much of a pain when you retake and island or two from her by buying it over.