You have three minutes to do this quiz about European football

There are only seven teams, but you need to be quick

Can you name the seven European teams to have completed a treble? By treble, we mean a team to have won their league, domestic cup and the European Cup in the same season. The only clue we'll give you is that three of the teams completed a treble in the pre-Champions League era. Good luck, and let us know how you do. (If the quiz does not display properly, just click here).