by Rebecca Macatee | Mon., Feb. 22, 2016 11:05 AM
It's been 12 years since Robert Kardashian passed away, but he continues to play an important role in his children's lives.
Monday would've been the Kardashian family patriarch's 72nd birthday, and Kim, Khloe, Kourtney and Rob Kardashian posted touching tributes to their late father in celebration of his life.
Kourtney posted a photo of Robert to Instagram, writing, "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."
Khloe shared a sweet video of her father talking to her when she was a little girl and another snap of them together when she was a toddler. "To be best man I've ever known, happy birthday daddy," she wrote. "I miss you! I miss you! I miss you! Man... I wish we had more pictures together."
Kim, who shared the first full photo of baby Saint West in honor of her dad's birthday, shared a heartfelt message as well. "Happy Birthday dad!" she wrote. "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!"
Meanwhile, Rob didn't have words to say, but just shared two precious photos from his childhood with his father. One was the same as Kylie's throwback, and the other was the sweet picture above.
It's clear Robert was a very beloved family man.