Wikipedia:

Osama Bin Laden was born in Riyadh, Saudi Arabia, to Muhammad Awad bin Ladin, a wealthy businessman involved in construction and with close ties to the Saudi royal family. There is no definitive account of the number of children born to Mohammed bin Laden, but the number is generally put at 54. In addition, various accounts place Osama as his seventeenth son, while others say he was the last of 25 sons.
After Iraq invaded Kuwait in 1990, bin Laden offered to help defend Saudi Arabia (with 12,000 armed men) but was rebuffed by the Saudi government. Bin Laden publicly denounced his government's dependence on the U.S. military and demanded an end to the presence of foreign military bases in the country. According to reports (by the BBC and others), the 1990/91 deployment of U.S. troops in Saudi Arabia in connection with the Gulf War profoundly shocked and revolted bin Laden and other Islamist militants because the Saudi government claims legitimacy based on their role as guardians of the sacred Muslim cities of Mecca and Medina. After the Gulf War, the establishment of permanent bases for non-Muslim U.S. forces in Saudi Arabia continued to undermine the Saudi rulers' legitimacy and inflamed anti-government Islamist militants, including bin Laden. Bin Laden's increasingly strident criticisms of the Saudi monarchy led the government to expel him to Sudan in 1991.
His immensely wealthy family publicly disowned him in 1994, shortly before the Saudi Arabian government revoked his citizenship. He attended his son's wedding in January 2001, but since 9/11 is believed only to have had contact with his mother on one occasion.
Not a prince of the house of Saud. Nor particularly well liked by them for quite a period before 2001.