The memorial services took place at St. Martin of Tours Catholic Church. Sly, his wife Jennifer Flavin, and his brother Frank Stallone were all present.  

36-year-old Sage – who appeared in “Rocky V” with his dad – died July 13 at his L.A. home. The circumstances surrounding his death are still being investigated. 

In a previous statement Sylvester Stallone said, “This agonizing loss will be felt for the rest of our lives. Sage is our first child and the center of our universe and I am humbly begging for all to have my son’s memory and soul left in peace.”