Robert Kardashian Sr.; Kim Kardashian. PHOTO: RON GALELLA/RON GALELLA COLLECTION VIA GETTY ; JOY MALONE/GETTY

Kim Kardashian is thinking of her late father Robert Kardashian Sr. a lot lately.

The SKIMS founder, 43, posted a throwback photo of Robert on her Instagram on Saturday.

Robert wore a blue suit in the picture, and he was holding a glass of red wine while standing next to his daughters Kim and Kourtney Kardashian, who appear to be preteens or young teenagers at the time.

The girls sported matching black-and-white polka-dot dresses in the photo. Kim captioned the nostalgic photo with a simple infinity sign.

Kim Kardashian shares an old photo of herself, father Robert Kardashian Sr., and sister Kourtney Kardashian Barker.KIM KARDASHIAN /INSTAGRAM

Kim’s mother, Kris Jenner, was married to Robert from 1978 to 1991. Along with Kim and Kourtney, 44, the pair also share daughter Khloé, 39, and son Rob Kardashian, 36.

Robert was diagnosed with esophageal cancer in July 2003 and died less than two months later on Sept. 30, 2003. He was a businessman and lawyer known for being on O.J. Simpson’s defense team during the former NFL star’s 1995 trial for the murder of Nicole Brown Simpson.

To honor their father’s memory, Robert’s children opened the Robert G. Kardashian Center for Esophageal Health in Los Angeles in 2019.

“So proud to announce the Robert G. Kardashian center for esophageal health being launched at UCLA,” Kim wrote on Twitter at the time. “My wish is that other families can have more information and we can also focus on health and prevention.”

Though law wasn’t her first career, Kim passed the “baby bar exam” in 2021. In the 2020 Oxygen documentary Kim Kardashian West: The Justice Project, she opened up about how it felt to follow in her dad’s footsteps and study law.

“There are times when I could be frustrated and studying really late and have to get up and wonder how he did it, having four kids and must’ve been going through some of the same things that I have gone through,” she said. “So it would have been exciting to talk to him about that, and I know that he would be so, so proud.”

Kim was also thinking of her dad earlier this month when she posted clips of herself watching old videos of Robert. “My dad was a cutie,” she wrote in a caption.