Frank Gifford's Daughter Pays Tribute to Her Famous Father: 'I Lost My Best Friend'

Frank Gifford's children have honored their famous dad as tributes continue to pour in for the NFL Hall of Famer.

Cody, his 25-year-old son with Kathie Lee, tweeted a photo of an intimate family moment:

Thank you, everyone. Dad meeting his great grandchild. #fighton #liveon. pic.twitter.com/mryHeUj4sq

— Cody Gifford (@CodyNGifford) August 10, 2015

And his 22-year-old daughter, Cassidy posted a sweet photo on Instagram.

Kathie Lee's Today show co-host Hoda Kotb has been comforting the family since Gifford passed away at the weekend.

She said on the show on Monday: “You know what Cody said when I went to his house on Sunday, after all this had happened? He said, ‘I just want to wish you a happy birthday.’ These kids are the most selfless people.”

Jenna Bush Hager sat in for Kathie Lee.

Read: Hoda Kotb Cries On Air As She Remembers Frank Gifford

She said: “Look how they raised those children, that's what everybody wants, to raise people like that. So for Cassidy to write something that beautiful, it epitomizes the love they have in that family.”

While appearing on Good Morning America, Frank met and fell in love with Kathie Lee. She's 23 years his junior, but the age difference didn't seem to make a difference.

Peter Richmond co-wrote The Glory Game with Frank Gifford.

He said: “He's really proud of Kathie Lee. He would spend a lot of time telling me about what Kathie Lee was up to. He was so happy to sluff off the mantle of fame and say, ‘See what my wife does.’”

Read: Peter Jennings Remembered a Decade After His Death

Frank Gifford leaves five children. He has three from a previous marriage, and two with Kathie Lee - Cassidy and Cody.

Fran Tarkenton and Frank Gifford appeared together on Monday Night Football. He told INSIDE EDITION: “He was a great father and a great friend.”

Watch Below: Jackie Siegel Has Not Returned to Versailles Mansion Since Her Daughter's Death