Zenyatta, the 2010 Horse of the Year, produced her third foal when a War Front filly was born at Lane's End Farm near Versailles, Ky., early Easter Sunday, April 20, near Versailles, Ky.
"The Queen has a princess! Zenyatta delivered a filly by War Front at 12:03 a.m. #EasterBaby #Zenyatta," the Zenyatta team tweeted.
The 10-year-old daughter of Street Cry, owned by Jerry and Ann Moss, previously produced a Bernardini colt in 2012 and a son of Tapit in 2013.
Zenyatta won 19 races in a row including the 2008 Breeders' Cup Ladies' Classic and the 2009 Breeders' Cup Classic before suffering her only loss to Blame in her final start, the Breeders' Cup Classic of 2010.
War Front, a Grade 2-winning son of Danzig, stands at Claiborne Farm near Paris, Ky., for a 2014 fee of $150,000.