(Game version 1.3 legendary hero)
Letting the door of AI-surrender open is a fun thing. Not only we can 'share' those gears they found during their adventures, we can also see the taste/favorite towards certain items of every leader, and their choice of deciding which gear to equip.
Among all the strange things in their item list, all the defeated AI sovereigns shares a common love for mounts. As shown in the following figure as an example of many.
They seems all quite fond of the 'White Warg' and the 'Black Horse', and base on my experience they like warg better than horse. I remember in one play through I actually see a surrendered sovereign got 20+ white warg on him.
I don't doubt that AI got a very sweet discount in shopping, but why mounts? and why those two mounts specifically?