Kardashians pay tribute to their late father Robert Kardashian on his birthday

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The Kardashian-Jenner family has taken to social media to remember their late father, Robert Kardashian, on what would've been his 72nd birthday.

Kardashian, who died of esophageal cancer in 2003 at the age of 59, was remembered Monday by Kourtney, Kim and Khloé Kardashian in a series of touching Instagram posts that paid tribute to him.

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"Happy Birthday dad," wrote Kim along with a smiling shot of her father. "So much has gone on in our lives since you've been gone, and I know you have been my guardian angel seeing it all unfold! I love you and miss you so much!"

Kourtney called him her "favorite man in the world," while Khloé called him "the best man I've ever known."

Kardashian's ex-wife, Kris Jenner, also acknowledged the emotional day, with a short home video clip that she regrammed from Khloé's account. And, though Robert wasn't their biological father, Kendall and Kylie Jenner also took to the social media platform to honor him.

Check out all of their heartbreaking tributes below:
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Kardashians pay tribute to Robert Kardashian
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Kardashians pay tribute to their late father Robert Kardashian on his birthday
Happy Birthday dad! So much has gone on in our lives since you've been gone, and I know you have been my guardian angel seeing it all unfold! I love you and miss you so much!
Happy birthday to my favorite man in the world who taught me everything. I know you are with me but I wish I could hug you. I love you Daddy.
#love #family #memories #Repost @khloekardashian
To the best man I've ever known, happy birthday daddy. I miss you! I miss you! I miss you! Man... I wish we had more pictures together
Rob is a spitting image of his dad. I love this pic.. Happy Birthday Robert 💙
Happy Birthday. we miss you ❤️
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