Proud And Regal is the last and best foal out of Simply Perfect (Danehill), a multiple Group 1 winner in England who took the Gr.1 Fillies' Mile and the Gr.1 Falmouth Stakes, and was Group 1-placed in France. He is her ninth named foal, all by Galileo, and one of four winners. She is also the dam of his full brother Mekong River, winner of the Gr.3 International Stakes, of Simply Beautiful, three times placed at Group 3 level, including second in the Gr.3 Princess Royal Stakes and the Gr.3 Give Thanks Stakes, and of a daughter who bred the Listed winners Gipoia and Falcao Negro in France. Simply Perfect is a full sister to One Moment In Time, dam of Bondi Beach (Galileo), a dual Group 3 winner and second in the Gr.1 St Leger, and of Constantinople (Galileo), winner of the Gr.3 Gallinule Stakes and fourth in the Gr.1 Melbourne Cup.

Second dam Hotelgenie Dot Com (Selkirk) was placed at two in the Gr.1 Moyglare Stud Stakes and the Gr.1 Fillies' Mile. She had 11 foals and four winners, the best of them Simply Perfect.

Third dam Birch Creek (Carwhite) was Group 3-placed. Her daughter Bianca Nera (Salse), a half-sister to Hotelgenie Dot Com, won the Gr.1 Moyglare Stud Stakes and the Gr.2 Lowther Stakes and bred three stakes performers. Another daughter, the winner Crackling (Electric), produced the Listed winner Ronaldsay (Kirkwall), dam of Gale Force Ten, a Group 3 winner, placed in a Classic and now a sire.

Bianca Nera is the second dam of Postponed (Dubawi), winner of the Gr.1 King George VI and Queen Elizabeth Stakes, the Gr.1 Juddmonte International Stakes, the Gr.1 Coronation Cup and the Gr.1 Dubai Sheema Classic and now a sire, of God Given (Nathaniel), winner of the Gr.1 Premio Lydia Tesio and the Gr.2 Park Hill Stakes, and of Turning Top (Pivotal), who won the Grade 3 Beverly Hills Handicap and was second in the Grade 1 Yellow Ribbon Stakes.