Yazdegerd III was the last Sasanian King of Kings of Iran from 632 to 651. His father was Shahriyar and his grandfather was Khosrow II. Wikipedia
Born: 624 AD, Estakhr, Iran
Died: 651 AD (age 27 years), Merv, Turkmenistan
Children: Shahrbanu, Peroz III, and Bahram VII
Grandchildren: Ali al-Sajjad, Narsieh, and Khosrow V
Great grandchildren: Muhammad al-Baqir, Zayd ibn Ali, Ali Al Asghar Ibn Ali-e-Zainul Abideen, and more
Parents: Shahriyar
Grandparents: Khosrow II and Shirin