What team has been around for longer, Societa Sportiva Calcio Napoli or UEFA Champions League?
2016–17 UEFA Champions League The 2016–17 UEFA Champions League was the 62nd season of Europe's premier club football tournament organised by UEFA, and the 25th season since it was renamed from the European Champion Clubs' Cup to the UEFA Champions League.
1998–99 UEFA Cup Winners' Cup The 1998–99 season of the UEFA Cup Winners' Cup club tournament was the last season of the competition before it was abolished. Lazio won the final against Mallorca to get their only title in the competition.