Complex sentence: Klaus Bonhoeffer was born in Breslau, now Wrocław, Poland, to Karl Bonhoeffer, a professor of psychiatry and neurology, and his wife Paula (née von Hase).
Split into simpler sentences: Klaus Bonhoeffer was born in Breslau, now Wrocław, Poland. His parents were professor of psychiatry and neurology Karl Bonhoeffer and his wife Paula (née von Hase).