@Walm Got you boss
Spoiler!
Lumensis Church, also known as the Holy Land of Bretus, is the reason behind the brand on Rudger's back. In this faith, any follower who has an illegitimate child must be branded before turning eight. Flora is aware of this because her family are devout followers of the Lumensis religion. They intended to brand her, but her mother intervened, which ultimately led to her tragic death