Inter Milan came from behind against Juventus to clinch a first Coppa Italia since 2011 at the Stadio Olimpico.
Hakan Calhanoglu's 80th-minute penalty forced extra time and Ivan Perisic scored twice in three minutes as Inter lifted the cup for the eighth time.
Nicolo Barella's superb strike had put Inter ahead after six minutes.
But holders Juventus scored twice in quick succession through Alex Sandro and Dusan Vlahovic to turn the game around early in the second half.
Defeat ended record 14-time winners Juventus' hopes of a trophy this season - the first time that has happened since 2010-11.
Serie A title chasers Inter, who are second and two points behind city rivals AC Milan with two games to go, had not reached the final of the competition since their previous triumph 11 years ago.
Inter will now face Cagliari and Sampdoria in their final two league games as they pursue a domestic double.
