Who is Nosratdoleh from Daughter of Persia: A Woman's Journey from Her Father's Harem Through the Islamic Revolution and what is their importance?

Shazdeh's oldest son, the arrogant, generous, spoiled Nosratdoleh should have become the partiarch of the family when his father died. However, Nosratdoleh insisted on voicing criticisms of some of the Shah's policies, and in flaunting his personal wealth, despite many warnings from family members. The Shah found both of these actions intolerable. He had Noratdoleh arrested and tortured. Eventually Satti's eldest half-brother was choked to death in prison, under the direction of a doctor.