Who was Peter?

Peter Van Daan

The only son of Mr. and Mrs. Van Daan. He is almost sixteen when he comes to live in the annex. Shy, awkward, and introspective, he does not pique Anne's attention until they have been living in the annex for almost two years. Then they begin a deep friendship that leads to some physical intimacy. Anne is at first head over heels in love with him, then she realizes that, although he is a nice young man, he is weak-minded and lacks character. He disappears on a forced march with the German army.