Tom Brady and Gisele Bündchen attend the Costume Institute Benefit at The Metropolitan Museum of Art May 7, 2012, celebrating the opening of Schiaparelli and Prada: Impossible Conversations. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/GettyImages)
Bundchen announced the birth on her Facebook page, saying their daughter was born at home on Wednesday and is "healthy and full of life."
"We feel so lucky to have been able to experience the miracle of birth once again and are forever grateful for the opportunity to be the parents of another little angel," Bundchen wrote in her Facebook posting.
The couple also has a son, Benjamin, who turns 3 on Saturday. Brady also has a 5-year-old son, John, with actress Bridget Moynahan.
(Copyright 2012 by The Associated Press. All Rights Reserved.)