Sylvester Stallone and Jennifer Flavin are parting ways after 25 years of marriage

Flavin executes a petition for dissolution of marriage and other judicial relief

From the Rocky actor, 76, on Friday at a court in Palm Beach County, Florida

Stallone and Starlin Castro, 54, began dating in 1988 at a restaurant in Beverly Hills, California

Stallone has three daughters Scarlet, 20, Sistine, 24, and Sophia, 25

Stallone is also the father of a son named Seargeoh from his previous marriage with Sasha Czack

Stallone's oldest son, Sage, whom he shares with Starlin Wright, passed away in 2012

Stallone, in a statement to PEOPLE, stated, "I love my family

We are quietly and amicably dealing with our private disputes