The death of the eldest son, the diagnosis of the other son with autism and the daughter with heart disease - Stallone's sad life behind the cameras

Sylvester Stallone is one of the most recognized names in world cinematography. The Hollywood icon of action movies has an extremely successful career behind him, but life behind the cameras has not been as happy for the famous actor.

From the marriage with Sasha Czack, the Hollywood star had two sons, one of whom died at the age of 36 and the other was diagnosed with autism. He also has three daughters from his marriage to Jennifer Flavin, while the eldest as a baby was diagnosed with a heart problem, in which case she had to undergo surgery. Below, the Telegraph brings you the story of Stallone's children.

Sage stallone was Sylvester's eldest son, who followed in his father's footsteps by becoming an actor, director and film producer. He was born in 1976 in Los Angeles to Hollywood icon actress and director Sasha Czack, thus being the brother of Seargeoh 'Seth' Stallone and half-brother to the actor's daughters, Sophia, Sistine, and Scarlet Stallone.

Sage made his film debut alongside his father in "Rocky V" (1990) playing the son of the main protagonist, Robert Balboa Jr. Also, he played with his father in the movie "Daylight" (1996). A photograph of Sage as a child next to his father was also featured in the 2015 film Creed.

Sage Stallone was found dead on July 13, 2012 at his home in Studio City, Los Angeles (aged 36). He had not contacted anyone for four days before he was found dead. An autopsy and toxicology tests showed Sage had died of coronary heart disease caused by atherosclerosis. At the time, he was in a serious relationship and engaged.

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Seargeoh Stallone is the second son of the 72-year-old from his marriage to Sasha Czack. He was born in 1979, while at the age of three he was diagnosed with autism. Despite numerous therapies, he has not managed to overcome his problem. Sylvester had realized something was wrong with his son's behavior when he posed with him for the cover of People magazine. Seargeoh had started repeating words and had trouble walking. After a series of examinations, doctors diagnosed him with autism. Since then, he has attended a number of different programs and therapies, as well as going to a special school.

Stallone refused to leave him in special medical institutions and kept him with his family, educating him like other children. Moreover, he debuted in the movie "Rocky II" (1979) in the role of Robert "Rocky" Balboa Jr.

Seargeoh spends most of his time alone, while even the paparazzi respect his privacy by not following him too much. In a way, he stays out of the public eye.

Sophia Rose (born 1996) is Stallone's eldest daughter from his marriage to Jennifer Flavin. When she was only two and a half months old, she was diagnosed with a hole in her heart. As a result, he needed open-heart surgery and has taken several years to fully recover. Now she leads a healthy life and lives a normal life.

Sistine Rose Stallone (born 1998) is the actor's second daughter from her marriage to Flavin, who has not had any health problems while enjoying a modeling career. She refuses to apologize for her private life even though she is quite active on social networks.

Scarlet Rose Stallone (born 2002) is Sylvester's youngest daughter from his marriage to Jennifer. She is a private person and likes to stay away from the media and very rarely talks about her life. /Telegraph/