Which English soccer team was the first to win the treble?

1st reply ="First and only to win the "treble" - Manchester United.

FA Cup

Premiership

Champions League"

Actually that's not true . Firstly it depends on what 3 trophies you consider the treble.

If you want to look at first 3 most prestigious its Liverpool 83/84

Manager : Joe Fagan.

Trophies League, League Cup (Today Carling Cup), European Championship (Champions League).

(And to think a certain manager was knighted when another manager beat him too it almost two decades ago.