He had no children, so he entailed the royal court to reach consensus on a successor upon his death.

Who is Sultan Qaboos son?

On 12 January 2021, by a royal decree of Sultan Haitham bin Tariq, Oman would appoint the Sultan's eldest son, Sayyid Theyazin bin Haitham, as the first crown prince of Oman.

Who is the next heir of Oman?

On 12 January 2021, the current Sultan, Haitham bin Tariq officially changed the Basic Law of State, stipulating the creation of the post for the Crown Prince of Oman and appointed his first son, Sayyid Dhi Yazan bin Haitham as the apparent successor, making him the first Crown Prince of the Sultanate.