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Rory McIlroy wins BMW PGA Championship by 1 shot after emotional week

Northern Ireland's Rory McIlroy completes his round during day three of the BMW PGA Championships at the Wentworth Club, Virginia Water England Saturday May 24, 2014.(AP Photo/PA, Adam Davy) UNITED KINGDOM OUT

Northern Ireland's Rory McIlroy completes his round during day three of the BMW PGA Championships at the Wentworth Club, Virginia Water England Saturday May 24, 2014.(AP Photo/PA, Adam Davy) UNITED KINGDOM OUT  (The Associated Press)

Rory McIlroy put aside the anguish in his private life to win the European Tour's flagship BMW PGA Championship on Sunday.

The double Major winner came from seven shots back at the start of the final round to shoot a 6-under 66 and win by 1 stroke with an overall 14-under 274 on the Wentworth course.

It is McIlroy's first European Tour success since December 2012 and also ends a run of eight second-place finishes in 11 events this season.

McIlroy's 12th victory worldwide comes four days after the 25-year old Northern Irishman confirmed the breakdown in his relationship with Danish-born tennis star Caroline Wozniacki.

Ireland's Shane Lowry birdied the last hole for a 68 and finished second on 13 under.