Royal Champion is out of Emirates Queen (Street Cry), winner of the Gr.2 Lancashire Oaks, a Group winner in England who was also Group-placed in France. She is also the dam of Outbox (Frankel), winner of the Gr.2 Jockey Club Stakes, a Group winner in England, multiple Group-placed in Sweden, a stakes winner in Qatar and stakes-placed in France. They are her only winners so far.

Second dam Zomaradah (Deploy) won the Oaks d'Italia, then a Group 1, and three Group 2 races. Among her six other winners are the triple Group 1 winner and champion sire Dubawi (Dubai Millennium) and Princess Nada (Barathea), a Listed winner who was Group 2-placed and bred Qewy, a Group 3 winner in Australia, and Jordan Princess, winner of the Listed Aphrodite Stakes. Zomaradah is also the second dam of Royal Rhyme (Lope De Vega), winner of the Gr.3 Brigadier Gerard Stakes and twice Group 1-placed, and an ancestress of Cloak Of Spirits (Invincible Spirit), a Listed winner and second in the Gr.1 1000 Guineas, and of Bow Echo (Night Of Thunder), the unbeaten winner of the Gr.2 Royal Lodge Stakes.

Third dam Jawaher (Dancing Brave) was placed and is a half-sister to High-Rise (High Estate), winner of the Gr.1 Derby in 1998 and later a sire.

Emirates Queen has a yearling colt by Triple Time and was covered by Sea The Stars in 2025.