Quote:
The house of Vochstein is known in Ala Mhigo for producing many skilled beastmasters. They specialize in the breeding and training of griffins, and those they have raised were much beloved by members of the royal family. As griffins offer their riders an unrivaled degree of mobility and are stalwart allies on the battlefield, they had a central role in Ala Mhigo's beastmaster battalion.
It goes on to say that the head of the Vochstein family released the griffons so that they wouldn't be used by the Garleans and his son offered to join the Garlean legions so his dad wouldn't be executed. He went on to eventually meet Lyon and gained enough respect from him as a beastmaster to not be executed himself. He also went on to train an orphan Lalafell girl: Pagaga. Beastmaster would be easily learned in Ala Mhigo and it would be simple to bring up that whole story without needing to involve Bozja since it's not critical.