Photo: kimkardashian/InstagramKim Kardashianand her sisters honored theirlate fatherRobert Kardashian Sr. on what would have been his 78th birthday on Tuesday.Kim, 41, posted a nostalgic “birthday selfie"to Instagramwith her dad, which showed a younger version of the reality star with flowers in her hair as she sat behind her father.“Birthday selfie with my dad!” theKardashiansstar wrote in the caption. “We took this pic on this day celebrating his birthday at the Armenian restaurant in 1998. Born on 2.22.44 and today it’s the angel number 2.22.22.““I definitely feel the angels all around and feel you all the time,” she continued. “Thank you for always guiding and protecting all of us. Definitely celebrating you today dad. I miss you soooooo much.“Older sisterKourtney Kardashianalso honored her late father, with a series of throwback photos posted to her Instagram Story on Tuesday.The first image showed a younger Kourtney, now 42, in between her father and motherKris Jenner.“Happy birthday to my daddy,” a note read below the picture. “My angel forever.“kourtney kardashian/InstagramThe mother of three later posted a photo of herself as a toddler with her father, on the Small World ride at Disneyland.Their younger sister,Khloé Kardashian, paid tribute to the late attorney, sharing a photo of herself with her dad, sisters, and brotherRob Kardashianto her Instagram Story.Khloé, 37, also shared a sweet throwback video snippet that showed her father in golf attire as he took his hat off to the female members of the family.khloe kardashian/InstagramRELATED VIDEO:Kim KardashianShares Selfies Twinning with Daughter North, 8, in Matching Pink Heart PajamasNever miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.Robert Sr. was a Los Angeles-based criminal lawyer who gained notoriety for being part ofO.J. Simpson’s defense team duringthe athlete’s 1994 trialfor the murders of Nicole Brown Simpson and Ron Goldman.Robert, who was married to the Kardashian sisters' mother Kris from 1978 to 1991, died weeks after being diagnosed with esophageal cancer in 2003. He was 59.

Photo: kimkardashian/Instagram

kim kardashian

Kim Kardashianand her sisters honored theirlate fatherRobert Kardashian Sr. on what would have been his 78th birthday on Tuesday.Kim, 41, posted a nostalgic “birthday selfie"to Instagramwith her dad, which showed a younger version of the reality star with flowers in her hair as she sat behind her father.“Birthday selfie with my dad!” theKardashiansstar wrote in the caption. “We took this pic on this day celebrating his birthday at the Armenian restaurant in 1998. Born on 2.22.44 and today it’s the angel number 2.22.22.““I definitely feel the angels all around and feel you all the time,” she continued. “Thank you for always guiding and protecting all of us. Definitely celebrating you today dad. I miss you soooooo much.“Older sisterKourtney Kardashianalso honored her late father, with a series of throwback photos posted to her Instagram Story on Tuesday.The first image showed a younger Kourtney, now 42, in between her father and motherKris Jenner.“Happy birthday to my daddy,” a note read below the picture. “My angel forever.“kourtney kardashian/InstagramThe mother of three later posted a photo of herself as a toddler with her father, on the Small World ride at Disneyland.Their younger sister,Khloé Kardashian, paid tribute to the late attorney, sharing a photo of herself with her dad, sisters, and brotherRob Kardashianto her Instagram Story.Khloé, 37, also shared a sweet throwback video snippet that showed her father in golf attire as he took his hat off to the female members of the family.khloe kardashian/InstagramRELATED VIDEO:Kim KardashianShares Selfies Twinning with Daughter North, 8, in Matching Pink Heart PajamasNever miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.Robert Sr. was a Los Angeles-based criminal lawyer who gained notoriety for being part ofO.J. Simpson’s defense team duringthe athlete’s 1994 trialfor the murders of Nicole Brown Simpson and Ron Goldman.Robert, who was married to the Kardashian sisters' mother Kris from 1978 to 1991, died weeks after being diagnosed with esophageal cancer in 2003. He was 59.

Kim Kardashianand her sisters honored theirlate fatherRobert Kardashian Sr. on what would have been his 78th birthday on Tuesday.

Kim, 41, posted a nostalgic “birthday selfie"to Instagramwith her dad, which showed a younger version of the reality star with flowers in her hair as she sat behind her father.

“Birthday selfie with my dad!” theKardashiansstar wrote in the caption. “We took this pic on this day celebrating his birthday at the Armenian restaurant in 1998. Born on 2.22.44 and today it’s the angel number 2.22.22.”

“I definitely feel the angels all around and feel you all the time,” she continued. “Thank you for always guiding and protecting all of us. Definitely celebrating you today dad. I miss you soooooo much.”

Older sisterKourtney Kardashianalso honored her late father, with a series of throwback photos posted to her Instagram Story on Tuesday.

The first image showed a younger Kourtney, now 42, in between her father and motherKris Jenner.

“Happy birthday to my daddy,” a note read below the picture. “My angel forever.”

kourtney kardashian/Instagram

kourtney kardashian

The mother of three later posted a photo of herself as a toddler with her father, on the Small World ride at Disneyland.

Their younger sister,Khloé Kardashian, paid tribute to the late attorney, sharing a photo of herself with her dad, sisters, and brotherRob Kardashianto her Instagram Story.

Khloé, 37, also shared a sweet throwback video snippet that showed her father in golf attire as he took his hat off to the female members of the family.

khloe kardashian/Instagram

khloe kardashian

RELATED VIDEO:Kim KardashianShares Selfies Twinning with Daughter North, 8, in Matching Pink Heart Pajamas

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Robert Sr. was a Los Angeles-based criminal lawyer who gained notoriety for being part ofO.J. Simpson’s defense team duringthe athlete’s 1994 trialfor the murders of Nicole Brown Simpson and Ron Goldman.

Robert, who was married to the Kardashian sisters' mother Kris from 1978 to 1991, died weeks after being diagnosed with esophageal cancer in 2003. He was 59.

source: people.com