By royal decree, Deputy Crown Prince Mohammed bin Salman was named the successor to the Saudi Arabian Kingdom on Wednesday.
Saudi Arabia's King Salman bin Abdulaziz Al Saud promoted his son to crown prince in what is viewed as a major shake-up, which saw former Crown Prince Mohammed bin Nayef being stripped of all his titles and duties.
According to the official Saudi Press Agency, the newly announced 31-year-old crown prince was also named deputy prime minister in addition to retaining his defence minister portfolio. Saudi Arabia's Allegiance Council voted 31 out of 34 possible votes in favor of the changes, according to state-owned channel al-Arabiya. The Saudi King reportedly called for a public pledging of allegiance to the new crown prince.
Previously, as deputy crown prince, Mohammed bin Salman was responsible for running Saudi Arabia's war in Yemen as well as spearheading a global energy policy and plans for a post-oil future for the kingdom.
Bin Salman was also in charge of his father's royal court during his father's tenure as crown prince.
The young prince was little known to the Saudis, and even less so to the rest of the world, prior to his father's ascension to the throne in January 2015.
The 57-year-old former crown prince and nephew of the king had long been considered next-in-line to the throne.
In addition to being heir to the kingdom at the time, he was lauded for being a counterterrorism czar whose other responsibilities included that of deputy prime minister and interior minister.
Earlier this year, bin Nayef was awarded the George Tenet award by the director of the U.S. Central Intelligence Agency, Mike Pompeo, for his contributions to "counter-terrorism."