Which football teams have won the quadruple?

Sextuple (association football) - Wikipedia

Transfermarkt] Teams who have won the treble. League+ Cup + UCL : r/soccer

Which football teams have won the treble?

Can Klopp win the quadruple that has eluded Guardiola and Manchester City?

Can Manchester United Really Win A Quadruple Of Trophies?

What is the quadruple in English football and has anyone ever won it? Liverpool eye glory on four fronts this season after Carabao Cup success

Manchester City's Quadruple bid How close have other clubs come? - ESPN

What clubs have won the quadruple in a season? - Quora

What clubs have won the quadruple in a season? - Quora

Celtic: The numbers behind the quadruple treble - BBC Sport

What is the quadruple in English football and has anyone ever won it? Liverpool eye glory on four fronts this season after Carabao Cup success

Liverpool continues quadruple charge with emphatic Champions League win over Benfica