Kourtney Kardashian is paying heartfelt tribute to her late father Robert Kardashian on what would have been his 80th birthday

Kourtney Kardashian has marked her father's 80th birthday with a sweet Instagram post.

Robert Kardashian, a lawyer who gained worldwide recognition in 1995 for serving on OJ Simpson's legal defense team, died of esophageal cancer in September 2003 at the age of 59.

Remembering her dad, Kourtney took to social media as she shared a selection of throwback snaps of her and her dad when she was a child.

She captioned the post: “My dad would have been 80 years old today. What I would give to sing him Happy Birthday and hear one of his funny jokes one last time.

“He had the best sense of humor and made life so much fun, like every car ride, every meal, watching movies (we had a movie date every Wednesday night and he showed me an old movie every week)… he made it all happen. so fun and special.

Robert Kardashian, a lawyer who gained worldwide recognition in 1995 for serving on OJ Simpson's legal defense team, died of esophageal cancer in September 2003 at the age of 59.

“Happy birthday to the best dad in the world.”

Robert was married to Kris Jenner from 1978 to 1991, and the couple share children Rob, 36, Kim, 43, Khloe, 39, and Kourtney, 44.

Sending her love Kris commented on the post with: 'The best daddy there ever was,' while Khloe also wrote: 'The best daddy in the world!!! Tomorrow is his birthday ❤❤❤ he is our angel'.

Kourtney also shared a photo of her and Rob on her Instagram Story from when she was a little older and her dad bought her a pair of classic '90s hammer pants.

She wrote: 'The 90s!!! these were my hammer pants that my dad bought me at the swap meet lol.

“My fit is going to be crazy with the matching socks, shirt and headband.”

Robert's death came four years before his family would achieve global fame on the show Keeping Up With The Kardashian, with Kim saying he would be proud.

After Robert and Kris' divorce in 1991, the lawyer married Jan Ashley in 1998, but the marriage ended in annulment 30 days later.

Kourtney remembered her dad and shared a selection of throwback snaps of her and her dad when she was a child on social media

Both Kris Jenner and Khloe also sent their love

Robert was married to Kris Jenner from 1978 to 1991, and the couple share children Rob, 36, Kim, 43, Khloe, 39, and Kourtney, 44

Robert's death came four years before his family would achieve global fame on the show Keeping Up With The Kardashian, with Kim saying he would be proud

After three years of dating, the Los Angeles native married his third wife, Ellen Pierson (née Markowitz), six weeks before his death.

Not only had Robert been one of Simpson's lawyers during his highly publicized murder trial, he had also been his friend for years before the legal proceedings, which ended with an acquittal for the former football great.

Last November, Kim emotionally reflected on one of the last conversations she had with her father before his death.

The reality star who opened up about her parents' divorce in the interview GQsaid her father urged her to care for her siblings before he died of esophageal cancer — two months after he was diagnosed.

Robert told her, “I know you're doing well. It's almost like I can see ahead. I know you're doing well, but just take care of your brothers and sisters for me. Just make sure you take care of them.

Kim said, “I took what he said about things being fine in life. But it made me make decisions differently.”

Meanwhile, Kourtney added, “There are parts that are amazing and amazing and that I'm so grateful for, and parts that can be hard, like my fight with my sister, where it drags things out in an unrealistic way because of the nature of our show. .

“We have to watch the edit and then relive things and then relive it during the interview. My father really loved being close to our family, so I think those moments would make him cringe.”