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Sage Stallone laid to rest in Los Angeles

Frank Stallone is seen leaving the Sage Stallone Memorial service held at the St Martin of Tours Catholic Church on July 21, 2012 in Los Angeles. Toby Canham/Getty Images

(CBS News) Sage Stallone, the 36-year-old son of actor Sylvester Stallone, was laid to rest Saturday After a private funeral in Brentwood, Calif.

The service at St. Martin of Tours Catholic Church was attended by Sage's father and mother, Sasha Czack, and close family and friends.

Pictures: Sage Stallone funeral

The family had previously requested that mourners make a donation to Autism Speaks instead of sending flowers. Sage's younger brother is autistic.

Sage, an actor who appeared with his father in "Rocky V, was found dead July 13 at his California home. An autopsy was performed but the cause of death is pending results of toxicology tests.