This beautiful woman is the wife of Saudi Crown Prince Mohammed bin Salman, born into royalty, and is respectfully referred to as Princess Sara.
Princess Sara is a cousin of Mohammed bin Salman, which is a case of close kin marriage. Despite her young age, she has already given birth to five children for him. The Crown Prince dotes on this wife; in Saudi Arabia, the law allows for the marriage of four wives, yet Mohammed bin Salman has only one beloved wife, which shows how 'faithful' he is to love.
Princess Sara has a low profile and rarely appears in public, which may explain the few photographs of her in public settings; perhaps this is due to Mohammed bin Salman’s desire to 'protect family privacy'.