Tamara is the fourth foal out of Beholder (Henny Hughes), a champion at two, at three and twice as an older mare, who won 10 Grade 1 races before closing her career with victory in the Grade 1 Breeders' Cup Distaff, for a total of eleven Grade 1 wins from two to six. Tamara is a year younger than her half-sister Teena Ella (War Front), winner of the Grade 3 Senorita S.

Second dam Leslie's Lady (Tricky Creek), a stakes winner, has eight winners. She is also the dam of Into Mischief (Harlan's Holiday), winner of the Grade 1 CashCall Futurity and since one of the world's most successful sires, Mendelssohn (Scat Daddy), winner of the Grade 1 Breeders' Cup Juvenile Turf in 2017 and a sire, and Marr Time (Not This Time).

Third dam Crystal Lady (Stop the Music) was a winner and produced nine winners, the best of them Leslie's Lady. She is a half-sister to two stakes winners in the US.

Beholder has a yearling colt by Curlin. She was barren to Gun Runner for 2023 and was then bred to Jackie's Warrior.