Who is Irene Mengele from Children of the Flames: Dr. Josef Mengele and the Untold Story of the Twins of Auschwitz and what is their importance?

Irene Mengele was Josef Mengele's first wife. She enjoyed German culture and adored her husband. She even visited Mengele while he was stationed at Auschwitz, remembering the visit as a pleasant one. After the war, however, Irene was disillusioned by the necessity of pretending her husband was dead and visiting him in secret. She soon asked for a divorce. When Mengele moved to Argentina, Irene refused to go with him. Irene later met another man while Mengele was in Argentina, and she once again requested a divorce. Mengele obliged and Irene married her lover. At the time this book was published, Irene was living a quiet life in her hometown in Germany.