Pioneerof the Nile

Pioneerof the Nile (May 5, 2006 – March 18, 2019) was an American Thoroughbred racehorse. He was the second-place finisher in the 2009 Kentucky Derby. He matured to stand 16.2 hands.
After retiring from racing, he became a breeding stallion, known for as the sire of 2015 Triple Crown winner American Pharoah, 2016 Champion 2-Year-Old Colt Classic Empire, and other graded-stakes winners.
He died of a heart attack on March 18, 2019 while being transported to a veterinarian near Versailles, Kentucky, aged 12.