Mariah is a 1994 Dutch mare with impeccable breeding. She is a Dutch Ster mare, out of Sandra, an imported Ster mare, whose pedigree is loaded with the very best in Dutch breeding. Sandra's sire is Pericles xx, a Preferent stallion who appears in the pedigree of the dressage sires Ulft and Olympic Ferro.

Mariah's sire is Rolando, an imported stallion who is a full brother to Armstrong, who won the jumping test of his stallion inspection in Holland, and a 3/4 brother to the late Zeoliet, a premiere sire of both dressage and jumping horses. Her paternal grandmother is Terma, a keur preferent prestatie mare, one of the world's elite mares.

Mariah's first foal was Tobias by Riverman, the highest bonited Holsteiner stallion standing in the US. Riverman was the Reserve Champion of the German Holsteiner approvals in 1992. In 1995, he was hailed as the Grand Champion of Dressage at Devon. Riverman is a powerful example of modern sport horse breeding efforts, and his ability to stamp his offspring is exceptional.

Mariah had a filly by Iroko on May 27, 2003. Whitney is typical of the fabulous crosses in Holland of the Iroko and Ramiro bloodlines.

Mariah had a colt by Routinier in 2004, a foal by Iroko in 2005, an a filly by Pablo in 2006