Sharon Osbourne has marked her first Valentine's Day without Ozzy Osbourne

She captioned the heartbreaking upload: "Forever Valentine."

Sharon - who married Ozzy in 1982 - was inundated with love from her fans in the post's comments section.

One supporter penned: "What a beautiful and unique love you two shared. It will never be replicated. Sending so much love to you this valentine's. (sic)"

A second user wrote: "You two are the perfect example of true love. Bless you + yours (sic)."

And a third person typed: "Beautiful. Ur love will be forever. He is with you always hugs u. (sic)"

According to Ozzy's death certificate, he passed away from "cardiac arrest, acute myocardial infarction, coronary artery disease and Parkinson's disease with autonomic dysfunction (Joint Causes)" on July 22 at his and Sharon's Buckinghamshire home.

His funeral procession through Birmingham took place on July 30, and Ozzy's private funeral was held at the Osbournes' estate the next day, where he was laid to rest next to a lake on the property.

Months after, Sharon, 73, recalled her final evening with the Prince of Darkness and revealed his final words.

The star - who insisted she will "never, ever" remarry - told close pal, 60-year-old broadcaster Piers Morgan on his Uncensored YouTube show: "He was up and down to the bathroom all night, and it was like 4.30, and he said, 'Wake up.'

"I said, 'I'm already bloody awake, you've woken me up.' And he said, 'Kiss me.' And then he said, 'Hug me tight.'

"I can't help wondering if I should have, could I have? If only I'd have told him I loved him more. If only I'd have held him tighter. And he went downstairs, worked out for 20 minutes and passed away."

Ozzy had a heart attack, and Sharon - who credited their three children, Aimee Osbourne, 42, Kelly Osbourne, 41, and Jack Osbourne, 40, for helping her through the terrible time following his death - "knew instantly" that her husband had passed away.

Sharon - who "would have just gone with Ozzy" if it was not for their children's support - recalled: "I ran downstairs, and there he was, and they were trying to resuscitate him, and I'm like, 'Don't - just leave him. Leave him. You can't. He's gone.'

"I knew instantly he'd gone. And they tried and tried, and then they took him by helicopter to the hospital, and they tried, and it's like, 'He's gone. Just leave him.'"