Having been second best in Sydney, England were seeking redemption for their World Cup final defeat and knew they faced the toughest of tests.
They have done things the hard way throughout the tournament - bouncing back from an opening defeat by France, coming from 2-0 down to beat Sweden in a penalty shootout and leaving it until the last minute to net a winner in extra time against Italy in the semi-final.
But despite demonstrating their comeback ability, few would have given them much of a chance at half-time when Wiegman's gamble on James had backfired and Spain were cruising.
Goalkeeper Hampton had to make several key saves, before Kelly's introduction helped kick England into action and Russo scored her first goal of the knockout stages.
It has been a theme of this tournament - that England's resilience was beyond anything shown by anyone else. They know how to win, they had proven it before and that was all they needed to turn to in the toughest moments.
Wiegman, the composer, the coolest woman in the stadium, made the right changes when it was clear Plan A had gone askew, another theme of the tournament.
And Kelly, who has enjoyed the limelight in this generation of Lionesses, ensured she had another key contribution in the final.
There was never any doubt when she fired the ball past goalkeeper Cata Coll, then ran into the corner by the England fans to celebrate - her shirt not whirling around her head this time, but held tightly by her team-mates.