Context : Princess Phra Nang Chao Suvadhana (Thai: สุวัทนา; rtgs: Suwatthana, 15 April 1906 -- 10 October 1985) was the royal consort of King Vajiravudh (or Rama VI) of Siam. 
Answer : Vajiravudh
What is Suvadhana's spouse's name?