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
Prince Hamzah bin Hussein Prince Hamzah bin Hussein Prince Hamzah bin Hussein, () (born 29 March 1980) is the elder son of King Hussein of Jordan and his American-born fourth wife, Queen Noor. He was named Crown Prince of Jordan in 1999, a position he held until his half-brother, King Abdullah II, rescinded it in 2004. Queen Noor states in her autobiography that she and King Hussein named Hamzah after Hamza ibn ‘Abd al-Muttalib. Born on 29 March 1980, Prince Hamzah ibn Al Hussein claims ancestry with the Islamic Prophet Mohammad through the Hashemite family. King Abdullah II officially named him as Crown Prince