Coronation Stakes winner Watch Me was behind Romanised for most of the way, but failed to pick up as Lee drew alongside Shaman before quickening in style to win well.
Charlie Appleby’s Line Of Duty flew late to grab third, narrowly behind Shaman.
Condon said: “I’m over the moon, I was delighted with him.
“There’s nothing like winning a Classic, but I’ve been watching racing since I was knee-high to a grasshopper and I’ve been very much aware of the history and prestige of this race.
“To get his name on the roll of honour means an awful lot.
“It also had added significance to me as I worked at Haras de Fresnay-le-Buffard (sponsors) for a yearling season many years ago and I know some of the guys there, so we’re thrilled.
“He was very impressive and it was great to see.”
He added: “It was a lovely confidence-booster last time and we’ve been delighted with him since. He’s in a good place.