Sylvester wrote in the caption, "Happy birthday to @sistinestallone our amazing daughter, who brings nothing but happiness. So so proud to be your father!" Never miss a story — sign up for ...

Though it's hard to believe, on July 6, Sylvester Stallone turned 78 ... She also emphasized how happy she feels to be his daughter. Sistine and her sisters Sophia and Scarlet admitted that ...

Sylvester Stallone is celebrating his daughter ... which took place Saturday. "A VERY HAPPY BELATED BIRTHDAY TO MY VERY SPECIAL DAUGHTER, SOPHIA!!" Stallone, 76, wrote in the Instagram caption ...

Sylvester Stallone's daughter Sistine has ... Sistine shared a sweet note about her dad to accompany the shots, saying: "Happy birthday to the greatest dad. I feel lucky to have you." ...