They have not lifted a European Trophy since 1991 when they beat Barcelona in the Cup Winners ' Cup final , and their one and only European Cup triumph was way back in 1968 , when they beat Benfica of Portugal 4-1 at Wembley .
<response> They have not lifted a <misc>European Trophy</misc> since 1991 when they beat <organization>Barcelona</organization> in the <misc>Cup Winners ' Cup</misc> final , and their one and only <misc>European Cup</misc> triumph was way back in 1968 , when they beat <organization>Benfica</organization> of <location>Portugal</location> 4-1 at <location>Wembley</location> . </response>