well no, none of my FM´s has this trait - rather one has the fruitful trait ..the one with the only two childs, one daughter and one very young boy. and this one is not an Arverni - he´s the youngest brother and obviously adopted from start of the game - Osi tribe or so.

the other true Arverni Brothers dont have a trait regarding this - and no comments about their wives.

sure i could wait for Arverni adoptees but thats not what i intended in this campaign ...strangely i never experienced this with other Factions.