Born: 1938 (age 86 years), Zwartberg, Genk, Belgium
Children: Stanisława Gierek-Ciaciura
Spouse: Krystyna Zębala-Gierek
Grandparents: Adam Gierek and Paulina Gierek
Parents: Edward Gierek and Stanisława Gierek
Previous offices: Member of the European Parliament (2004–2019) and Member of the European Parliament (2001–2019)
Party: Labour Union