GCH Roundtown Mercedes of Maryscot (2 April 2005 - 13 August 2014), also known as Sadie, was a Scottish terrier from Mackinac Island in the U.S. state of Michigan.
[1][3] This made her the first Triple Crown winner; she also won the National Dog Show in November 2009 and the AKC National Championship in December 2009.
[4] Sadie's owners were Amelia and Dan Musser, and her handlers were Gabriel and Ivonne Rangel.
[1] Sadie's father and littermates were all named after cars.
[5] Sadie died on 13 August 2014, at the home of her handlers in Rialto, California, following complications from surgery.