Usually when a lord is released or escapes from captivity, there will be a corresponding notification on the bottom left of the screen. However, I never see the notification that a lord is ransomed, which should go like "X lord of the Y faction has been ransomed from the Z faction".
At first I thought that one of my mods was causing this, but I confirmed by disabling almost all my mods and starting a new campaign. The only mod I enabled was a mod which could fast forward the time to 128x; it only affects the map time and doesn't affect ransoms or anything else, and that was how I observed that the AI never ransoms lords.
At first I thought that one of my mods was causing this, but I confirmed by disabling almost all my mods and starting a new campaign. The only mod I enabled was a mod which could fast forward the time to 128x; it only affects the map time and doesn't affect ransoms or anything else, and that was how I observed that the AI never ransoms lords.