Johanna Walsh is out of Miss Aiglonne (Dawn Approach), who was placed but did not win a race. She has four winners, the best of them Johanna Walsh and her full sister Kildare Legend, a winner in Britain and Spain who was Listed-placed.

Second dam Aiglonne (Silver Hawk) won the Gr.3 Prix Fille de l'Air and was third in the Orchid Handicap in the US. Of her 13 runners, Miss Aiglonne is the only one who did not win. Her 12 winners include Mekhtaal (Sea The Stars), winner of the Gr.1 Prix d'Ispahan and now a sire, the dual Grade 3 winner in the US Aigue Marine (Galileo), herself a stakes producer, Normandy Bridge (Le Havre), winner of the Gr.3 Prix Thomas Bryon and second in the Gr.1 Criterium International, and Democrate (Dalakhani), who won the then Gr.2 Prix Hocquart.

Third dam Majestic Role (Theatrical) was a Listed winner in Ireland and placed at Group 1 level. She has five winners, among them Aiglonne and the Listed-placed Last Attempt (Cape Cross).

Aigue Marine is the dam of Fenelon, a triple Listed winner, and the grandam of Gala Real, winner of the Listed Prix de la Seine. The family is connected to Germance (Silver Hawk), whose dam is a daughter of Majestic Role. Germance won the Gr.1 Prix de Diane and the then Gr.1 Prix Saint-Alary and is the dam of Gezora, who won the Gr.1 Prix de Diane and the Grade 1 Breeders' Cup Filly & Mare Turf in 2025. This is also the family of White Muzzle (Dancing Brave) and Almutawakel (Machiavellian), both Group 1 winners and sires.

Miss Aiglonne has a two-year-old gelding, Seagoing, a full brother to Johanna Walsh, and a colt by Sea The Stars born in 2026, her fifth foal by that sire.