Hussein, Crown Prince of Jordan being King Hussein's eldest son; the King had appointed his younger brother Prince Hassan as heir designate in 1965. Shortly before his death on 7 February 1999, the King replaced Hassan with Abdullah. When Abdullah became king, he named his younger half-brother, Prince Hamzah, as heir designate on his accession. On 28 November 2004, King Abdullah removed Hamzah from his title as crown prince. Though the title of crown prince was left vacant, the Constitution of Jordan provides for agnatic primogeniture, meaning the monarch's eldest son is automatically first in the line of succession to the Jordanian throne unless decreed
Hussein, Crown Prince of Jordan Hussein has accompanied his father on both official and military missions, and has served several times as regent during the King's absence from the country. Hussein is in charge of the Crown Prince Foundation, which is responsible for a technical university, and a number of scientific and humanitarian initiatives. The foundation established the Haqiq initiative, which aims to encourage youth for volunteerism; a NASA internship program; MASAR initiative to encourage space technology innovation; and the Hearing Without Borders initiative that funds cochlear implants for Jordanians with impaired hearing. The interns from the NASA program have started to build a cubesat