Klaus Bachlechner (born 27 December 1952) is an Italian former professional footballer who played for Hellas Verona, Pisa (on loan), Novara (on loan), Bologna and Inter Milan.
 His son Thomas is also a footballer.
Paolo Cesare Maldini (] ; born 26 June 1968) is an Italian former professional footballer who played as a left back and central defender for A.C. Milan and the Italy national team.
 He spent all 25 seasons of his career in the Serie A with Milan, before retiring at the age of 41 in 2009.
 He won 23 trophies with Milan while in the squad: the UEFA Champions League five times, seven Serie A titles, one Coppa Italia, three Supercoppa Italiana titles, four European Super Cups, two Intercontinental Cups and one FIFA Club World Cup.
Christian Maldini (born 14 June 1996) is an Italian footballer who plays for Hamrun Spartans in the Maltese Premier League, on loan from Reggiana.
 He is the son of Milan and Italy legend Paolo Maldini, and the grandson of Cesare Maldini.
Alberto Di Chiara (born 29 March 1964) is an Italian former professional footballer, who played for Roma, Reggiana, Lecce, Fiorentina, Parma and Perugia, as well as for the Italian national side, as a winger and full back.
 He is the younger brother of the Italian footballer Stefano Di Chiara.
Christian "Bobo" Vieri (] ; born 12 July 1973) is an Italian former professional footballer who played as a centre forward.
Marco Simone (born 7 January 1969, in Castellanza) is an Italian former professional footballer, who played as a striker or winger.
 He most prominently played for A.C. Milan, with whom he won four Italian Serie A championships and two UEFA Champions League titles, as well as French clubs Paris Saint-Germain and AS Monaco.
 Simone played four games for the Italian national team.
Antonio Cassano (] ; born 12 July 1982) is an Italian former professional footballer who played as a forward.
 A talented and technically gifted player, he was usually deployed in a creative role, as a supporting forward throughout his career, although he was also capable of playing in more of a playmaking role, as an attacking midfielder, as well as on the wing, or as a striker.
 Nicknamed "Il Gioiello di Bari Vecchia" ("the jewel of Old Bari"), and "Fantantonio" ("fantastic Antonio"), he was known for his short temper as much as his skill and ability on the pitch, which led to the coining of the neologism "Cassanata" by his former Roma and Real Madrid coach, Fabio Capello, in November 2002, due to their disputes over his actions.
 The word is regularly used by Italian journalists as a euphemism for any behavior incompatible with team spirit in football.
Roberto Baggio (] ; born 18 February 1967) is an Italian former professional footballer who mainly played as a second striker, or as an attacking midfielder, although he was capable of playing in several offensive positions.
 He is the former president of the technical sector of the Italian Football Federation (FIGC).
 A technically gifted, creative playmaker and a set piece specialist renowned for his curling free-kicks and goalscoring, Baggio is regarded as one of the greatest footballers of all-time.
 In 1999, he came fourth in the FIFA Player of the Century internet poll, and was chosen on the FIFA World Cup Dream Team in 2002.
 In 1993, he was named FIFA World Player of the Year and won the Ballon d'Or.
 In 2004, he was named by Pelé in the FIFA 100, a list of the world's greatest living players.
Ferruccio Mazzola (1 February 1945 – 7 May 2013) was an Italian former professional footballer and manager, who played as a midfielder.
 He was the son of former footballer Valentino Mazzola, and the younger brother of retired footballer Sandro Mazzola.
Stefano Nava (born 19 February 1969 in Milan) is an Italian former footballer, who played as a defender.
 He is best known for having played for A.C. Milan in the early 1990s, where he was a backup for players such as Franco Baresi, Paolo Maldini, Mauro Tassotti and Alessandro Costacurta.

Question: Which Italian former professional footballer is the father of Christian Maldini
Answer: Paolo Cesare Maldini