Oh hey I sort of unintentionally did the monk one! He was raised in a villain's cult that was was taken down by a party of adventurers. Since he was raised in it he fully believed in the cult's teachings until the shock of that day, and since then he had been trying to make up for it. I didn't use the religious aspect, but he had the aesthetic and the repentance, and also the party's druid had taken him on as an apprentice beer brewer so he even had that European monastic tradition down too