February 22 is a bittersweet day for the Kardashian kids, who took some time today to post cute photos and remember their late father on what would have been his 69th birthday.

Robert Kardashian passed away from esophageal cancer in 2003, at the age of 59

Kim, on her blog, posted some adorable pictures of herself and her father, along with some sweet thoughts. “Here are some pics of me with my dad!” she wrote. “Today would have been his birthday. Love you so much and miss you, daddy! Xo”

Another read, “Happy Birthday dad!!! You would have been pretty old today ;)”

Khloe also remembered her Dad on her blog, writing, “I miss you more then you could ever know. Heaven has some amazing people up there. He wants His best by His side.”

We wish all the Kardashians the best on what must be a difficult day, but it's heartwarming to see such an outpouring of love. They were so lucky to have one another!

Source: Kim Kardashian’s Blog, Khloe Kardashian’s Blog