Perfect Power is the only runner out of Sagely (Frozen Power), a dual winner and a half-sister to Sagaciously (Lawman), a winner at two and second in the Listed Upavon Stakes. Sagaciously is the dam of Epic Poet, a Listed-placed juvenile winner.

Second dam Saga Celebre (Peintre Celebre) won twice and had three other winners, among them Sagaciously.

Third dam Saga d'Ouilly (Linamix) won at two and bred seven more winners from as many runners. Among them are the Listed winners Sagaroi (King's Best) and Sagauteur (Literato), the three-time winner Sadiyna (Sinndar), dam of the Listed-placed juvenile winner Sadarak, and the winner Saghaniya (Rock Of Gibraltar), dam of Sagamiyra (Sea The Moon), winner of the Gr.3 Prix du Pin and second in the Gr.1 Prix de Rothschild.

This is the Aga Khan family of Sagamix (Linamix), winner of the Gr.1 Prix de l'Arc de Triomphe and a sire. The fourth dam Saganeca (Sagace), his dam, bred nine winners; she won the Gr.2 Prix de Royallieu and was Group 1-placed; the others include Sagacity (Highest Honor), winner of the Gr.1 Critérium de Saint-Cloud and a sire, and Sagamix's full sister Sage et Jolie, who won the Gr.2 Prix de Malleret and bred the sire Sageburg (Johannesburg), winner of the Gr.1 Prix d'Ispahan. Another daughter, Sagalina (Linamix), produced Sagawara, winner of the Gr.1 Prix Saint-Alary. The family also contains the notable broodmare Shastye (Danehill), a Listed-placed daughter of Saganeca, dam of Japan (Galileo), winner of the Gr.1 Juddmonte International and the Gr.1 Grand Prix de Paris, and of his full brother Mogul, winner of the Gr.1 Grand Prix de Paris and the Gr.1 Hong Kong Vase, as well as of Secret Gesture, winner of the Gr.2 Middleton Stakes and placed in several Group 1 races and a Classic, and the Group 3 winner Sir Isaac Newton.

Sagely has the unraced 2-year-old filly Margaret Elizabeth (Kodiac) and a yearling colt by Galileo Gold.