Hermione approached father Valko Krum within weeks of her arrival regarding education in the Dark Arts, knowing it was not such a taboo concept to them due to their Durmstrang education. He did not seem surprised with her request that late-night she had approached him in his study. She had chosen him as she did not want to involve Viktor for the sake of his own wife and young son, besides his father was a lot more involved with politics and academia than Viktor. 