Lisa Marie Presley lost Benjamin Keough in July 2020 after he died by suicide at 27, and she will “forever be mourning” the death of her first son.

The 54-year-old mother took to Instagram on Sunday to share a lengthy post paying tribute to her late son. 

“I haven’t posted in quite some time because there really isn’t much to say, as I am and will forever be mourning the loss of my son,” the daughter of Elvis Presley wrote.

“Navigating through this hideous grief that absolutely destroyed and shattered my heart and my soul into almost nothing has swallowed me whole. Not much else aside from my other 3 children gets my time and attention anymore.”

In the same post, the heartfelt message was accompanied by a promotional poster for Baz Luhrmann’s upcoming film, "Elvis," which stars Austin Butler in the titular role of her father, per Page Six.

She credited the 30-year-old actor's "unprecedented" performance in his portrayal of her father's role. "Austin Butler channeled and embodied my father’s heart and soul beautifully. In my humble opinion, his performance is unprecedented and FINALLY done accurately and respectfully," she said.

Lisa Marie Presley Singer Lisa Marie Presley poses at the premiere of "Mad Max: Fury Road" in Hollywood, California May 7, 2015. The movie opens in the U.S. on May 15. Photo: Reuters/Mario Anzuoni

"You can feel and witness Baz’s pure love, care, and respect for my father throughout this beautiful film, and it is finally something that myself and my children and their children can be proud of forever," Presley added.

She went on to share that her other children – Riley Keough, 32, and twins Finley and Harper Lockwood, 13 – also had a strong reaction to the film.

“What moved me to tears as well was watching Riley and Harper, and Finley afterwards, all 3 visibly overwhelmed in the best way possible way, and so filled with pride about their grandfather and his legacy in a way that I have not previously experienced,” she gushed.

“It breaks my heart that my son isn’t here to see it. He would have absolutely loved it as well.”

Benjamin died on July 12, 2020, at his home in Calabasas, California. The Los Angeles County Medical Examiner’s Office ruled his death a suicide, per Page Six.

Three months after his passing, he was laid to rest at Graceland beside grandfather Elvis Presley and several other family members.