Naif bin Abdullah el-Hashim (14 November 1914 – 12 October 1983) was the youngest son of King Abdullah of Jordan

Abdullah I of Jordan

Abdullah I bin al-Hussein, King of Jordan [‘Abd Allāh ibn al-Husayn] عبد الله الأول بن الحسين born in Mecca, Second Saudi State, was the second of three sons of Sherif Hussein bin Ali, Sharif and Emir of Mecca and his first wife Abdiyya bint Abdullah...

. He attended Victoria College in Cairo

Cairo

Cairo , is the capital of Egypt and the largest city in the Arab world and Africa, and the 16th largest metropolitan area in the world. Nicknamed "The City of a Thousand Minarets" for its preponderance of Islamic architecture, Cairo has long been a centre of the region's political and cultural life...

. Naif became regent of Jordan

Jordan

Jordan , officially the Hashemite Kingdom of Jordan , Al-Mamlaka al-Urduniyya al-Hashemiyya) is a kingdom on the East Bank of the River Jordan. The country borders Saudi Arabia to the east and south-east, Iraq to the north-east, Syria to the north and the West Bank and Israel to the west, sharing...

 on July 20, 1951, following the assassinaion of Abdullah, because his brother, Crown Prince Talal

Talal of Jordan

Talal I bin Abdullah 26 February 1909 – 7 July 1972) was the second King of Jordan from 20 July 1951 until forced to abdicate in favour of his son Hussein due to health reasons on 11 August 1952....

, was reportedly suffering from poor health. Naif ruled in his older brother's stead until September 6, 1951, when Talal was judged fit to assume the throne. Naif died in Jordan on October 12, 1983.