Abdullah was born on 30 January 1962 in Amman, to King Hussein and Hussein's British-born second wife, Princess Muna Al-Hussein (born Antoinette Avril Gardiner). He is the namesake of his paternal great-grandfather, Abdullah I, who founded modern Jordan. Abdullah's dynasty, the Hashemites, ruled Mecca for over 700 years—from the 10th century until the House of Saud conquered Mecca in 1925—and have ruled Jordan since 1921. The Hashemites are the oldest ruling dynasty in the Muslim world. According to family tradition, Abdullah is the 41st-generation agnatic descendant of Muhammad's daughter Fatimah and her husband, Ali, the fourth Rashidun caliph.