Lisa Marie Presley’s twins are engaged in a custody fight.

Lisa Marie Presley’s 14-year-old twin children may be the focus of a custody battle.

Elvis Presley’s sole child died of a double heart attack late last week, and her ex-husband Michael Lockwood is reportedly declaring that he will not cede custody of the children until “a cold day in hell.” That is the case, according to Presley family sources reported by TMZ.

Finley and Harper Vivienne, who spent most of their childhood under their mother’s care and were present when she died, are now under Lockwood’s care 40% of the time.