By many accounts, he is considered one of the best and most capable pilots of his time.Jahanbani was born on 16 April 1928 into a family with a long military history. His father, Amanullah Jahanbani, was a lieutenant general, who served in the Persian Cossack Brigade with Reza Shah Pahlavi. He was a Qajar prince, great-grandson of Fath Ali Shah. Nader's mother, Helen Kasminsky, was from the Russian aristocracy in Petrograd. He had one sister, Mehremonir and two brothers, Parviz, who was an officer in the Imperial Iranian Marines, and Khosrow, who married Shahnaz Pahlavi. Amanullah was imprisoned when Nader Jahanbani was 12, but after Reza Shah died, he was released and made a senator by Mohammad Reza Pahlavi.