He was the elder brother of Queen Sirikit, consort of King Bhumibol Adulyadej (Rama IX) of Thailand.

He had three siblings: one elder brother and two younger sisters: When he was 2, his father was created Charge d' affaires of Washington, D.C., after the 1932 Siamese Revolution.

[clarification needed] When he moved back to Thailand, he continued studying at The Institute of Legal Education of The Thai Bar.

The marriage was performed by King Bhumibol Adulyadej and Queen Sirikit, Adulakit's younger sister at Klai Kangwon Palace.

The couple have 2 daughters: Mom Rajawongse Adulyakit Kitiyakara died on May 5, 2004, at Bangkok Hospital, at the age of 74.