Somdet Phra Nang Chao Sirikit Phra Borommarachininat; born Mom Rajawongse Sirikit Kitiyakara on August 12; 1932); is the queen consort of Bhumibol Adulyadej; King (Rama IX) of Thailand. She is the second Queen Regent of Thailand (the first Queen Regent was Queen Saovabha Bongsri of Siam; later Queen Sri Patcharindra; the queen mother). As the consort of the king who currently is the world's longest reigning head of state; she is also the world's longest serving consort of a monarch.