[1] Hteik Su Phaya Gyi was born on 5 April 1923 in Rangoon, British Burma, to Ko Ko Naing and Princess Myat Phaya Galay, the fourth daughter of King Thibaw and Queen Supayalat.

[8] In a BBC interview, she asserted having received an engagement proposal from Ananda Mahidol of Thailand in 1936 when he was still a prince.

The subsequent arrangements were reportedly overseen by her mother, sparking widespread expectations among many people at the time that she would become the future queen consort of Thailand.

[9] She sought to bring King Thibaw's body back to Myanmar as part of her family's mission.

[14] In 2017, Hteik Su Phaya Gyi and her younger brother Taw Phaya, her nephew Soe Win, and her niece Devi Thant Sin appeared as the main characters of We Were Kings, a documentary film by Alex Bescoby and Max Jones.