Complex sentence: Heinz Winkler was the youngest ever chef to receive 3 Michelin stars in 1981 when he was 32 years old also he was the first Italian Chef to receive 3 Michelin stars.
Split into simpler sentences: Heinz Winkler was the youngest ever chef to receive 3 Michelin stars, when, in 1981, he was 32 years old. He also was the first Italian Chef to receive 3 Michelin stars.