Portugal last competed in a final at Euro 2004, when the team lost on home soil to Greece. A 19-year-old Ronaldo shed tears after that match, but he has managed to lead a much weaker side to another international showpiece.
Portugal had been extra-time specialists in recent knockout games in major tournaments, and hadn't previously won a match in regulation 90 minutes in France. But Ronaldo produced two telling moments to ensure there would be no late drama here.
He was upstaged by Madrid teammate Gareth Bale in a cagey first half, with the Wales star impressing with surging runs and twice going close with shots.
Then Ronaldo took center stage, as he invariably does on the big occasion.The owner of the best leap in world football, Ronaldo timed his jump perfectly and headed home Raphael Guerreiro's cross off a short-corner routine. Wales defender James Chester had no chance as Ronaldo made contact from just outside the six-yard box for his third goal of the tournament.
When Nani turned in a shot from Ronaldo that was drifting wide, the surprise run of Wales - the rugby-mad nation of 3 million people - was about to end.