Turki I bin Abdulaziz Al Saud was the eldest son of King Abdulaziz of Saudi Arabia.
Background
He accompanied his father during the conquest of the Arabian Peninsula at a young age, and witnessed battles in Kuwait and Al-Hasa. Turki al Awwal was the eldest son of King Abdulaziz. He was born in 1900 when his family was in exile there.
Career
In 1918 he had a son named Faisal. He died in 1919 due to flu pandemic which also killed many others in the region also including two of his half-brothers. Saad (I) was the younger full-brother of King Faisal.
Turki Al Awwal was elder full brother to King Saud. Turki's birthplace is Kuwait City. Their mother was Wadhah bint Muhammad bin 'Aqab, who belonged to the Bani Khalid tribe.
She was the daughter of the chief of the Bani Khalid tribe, who ruled Al Hasa and was King Abdulaziz's second wife. Prince Turki was the deputy of his father as commander-in-chief of the army. During his lifetime, Turki al Awwal was the Crown Prince of Najd, his father's domain until then.
He was Crown Prince beginning by his father's conquest of Riyadh on 15 January 1902 up to his own early death in 1919. Turki al Awwal died in Riyadh during the flu pandemic that killed his mother and many others in the region in 1919. His father was said to be deeply saddened by his death.