Who is the only Irish golfer to have have won four major championships?

The only Irish golfer to have won four major championships is Rory McIlroy. He achieved this remarkable feat by winning the U.S. Open in 2011, the PGA Championship in 2012 and 2014, and The Open Championship in 2014. McIlroy is known for his exceptional talent and has been a prominent figure in professional Golf. His victories have significantly contributed to his status as one of the top golfers in the world.