Princess Julia Lee of Korea (18 March 1927 – 26 November 2017) was an American member of the Korean Imperial Household.
She became the de facto wife of Gu, Prince of Korea.
The two were never legally married in accordance with Korean custom, in that Mullock was not included in the registry of the Lee Family Council.
Due to her exclusion from the registry of the Lee Family Council, Mullock later had trouble finalizing her divorce in the United States from Prince Gu.
The exclusion of Mullock from the registry of the Lee Family Council also means that her being a member of the Korean Imperial Household is disputed.