The Platinum Queen is the first living foal of the unplaced Thrilled (Kodiac) and her first winner. Thrilled is a half-sister to The Gold Cheongsam (Red Clubs), third in the Listed Boadicea S. and the dam of Qipao, a winner at two who finished fourth at Listed level.

Second dam Fuerta Ventura (Desert Sun) was Listed-placed in Italy and has produced three winners, among them Stallion Treasure (Bushranger), who won four races in Macau. She is a half-sister to Sir Xaar (Xaar), winner of the Listed Ripon Champion Two-Year-Old Trophy and second in the Gr.2 Mill Reef S.

Third dam Cradle Brief (Brief Truce) never ran. She is also the dam of Mamlook (Key Of Luck), winner of the Gr.2 Holloway's Handicap Hurdle.

This is the family of Oscar Schindler (Royal Academy), twice a winner of the Gr.1 Irish St Leger, and of Tiger Royal (Royal Academy), winner of the Gr.3 Greenlands S.

Thrilled has a yearling colt and a colt foal, both by Galileo Gold.