The league hosts three of the world's most famous clubs as Juventus, AC Milan and Inter Milan, all founding members of the G-14, a group which represented the largest and most prestigious European football clubs from 2000 to 2008, with the first two also being founding members of its successive organisation, European Club Association (ECA). More players have won the Ballon d'Or award while playing at a Serie A club than any league in the world other than Spain's La Liga. Juventus, Italy's most successful club of the 20th century and the most winning Italian team, is tied for sixth in Europe and twelfth in the world with the most official international titles with eleven.Sixth most successful European club for confederation and FIFA competitions won with eleven titles. Sixth most successful club in Europe for confederation club competition titles won (11), cf. Prior the first Europa Conference League final in 2022, it was also the only one in the world to have won all the historical five official confederation competitions, an achievement reached after its triumph in the 1985 Intercontinental Cup and revalidated after winning a sixth tournament, the UEFA Intertoto Cup, fourteen years later. Milan is joint third club overall for official international titles won with nineteen. Inter, following their achievements in the 2009–10 season, became the first Italian team to have achieved a seasonal treble. It is also the team to have competed uninterruptedly for the most time in the top flight of Italian football, having seen its debut in 1909. All these clubs, along with Lazio, Fiorentina, Roma and Napoli, are known as the "seven sisters" () of Italian football.Serie A al via: le sette sorelle sono tornate In the 1990s, when the term originated, Parma was seen as one of the Seven Sisters and Napoli was not included.
The league hosts three of the world's most famous clubs as Juventus, AC Milan and Inter Milan, all founding members of the G-14, a group which represented the largest and most prestigious European football clubs from 2000 to 2008, with the first two also being founding members of its successive organisation European Club Association (ECA). More players have won the Ballon d'Or award while playing at a Serie A club than any league in the world other than Spain's La Liga. Juventus, Italy's most successful club of the 20th century and the most winning Italian team, is tied for sixth in Europe and twelfth in the world with the most official international titles with eleven.Sixth most successful European club for confederation and FIFA competitions won with eleven titles. Sixth most successful club in Europe for confederation club competition titles won (11), cf. Prior the first Europa Conference League final in 2022, it was also the only one in the world to have won all the historical five official confederation competitions, an achievement reached after its triumph in the 1985 Intercontinental Cup and revalidated after winning a sixth tournament, the UEFA Intertoto Cup, fourteen years later. Milan is joint third club overall for official international titles won with nineteen. Inter, following their achievements in the 2009–10 season, became the first Italian team to have achieved a seasonal treble. It is also the team to have competed uninterruptedly for the most time in the top flight of Italian football, having seen its debut in 1909. All these clubs, along with Lazio, Fiorentina, Roma and Napoli, are known as the "seven sisters" () of Italian football.Serie A al via: le sette sorelle sono tornate In the 1990s, when the term originated, Parma was seen as one of the Seven Sisters and Napoli was not included.