Abdullah ibn Uthman ibn Affan
Uthman's son
Abd Allah ibn Uthman, was the son of the third caliph Uthman and Ruqayya bint Muhammad. Born in Abyssinia, Abd Allah was the first grandson of the Islamic prophet Muhammad. Wikipedia
Born: 620 AD, Kingdom of Aksum
Died: December 625 AD (age 5 years), Madinah, Saudi Arabia
Parents: Uthman and Ruqayya bint Muhammad
Great-grandparents: Abdullah ibn Abd al-Muttalib, Aminah bint Wahb, Abu al-As ibn Umayya, and more
Cousins: Husayn ibn Ali, Hasan ibn Ali, Zaynab bint Ali, and more