Lambourn is the first winner and the second runner for Gossamer Wings (Scat Daddy), who won a maiden over 5f at Navan and was multiple Group-placed in England, including second in the Gr.2 Queen Mary Stakes at two, and stakes-placed in Ireland. She is a full sister to the stakes winner Lavender Chrissie. Gossamer Wings is related to Baby J (J Be K), winner of the Grade 3 Victory Ride S., the stakes winner Laureate Conductor (Bernstein), placed in the Secretariat S., then a Grade 1, the dual stakes-placed Que Posse (Posse) and the dam of Infancy (Wandjina), winner of the Gr.2 Sapphire S.

Second dam Lavender Baby (Rubiano) won eight times in the US and has ten winners, among them Gossamer Wings, Lavender Chrissie, Baby J and Laureate Conductor. She is also the grandam of Infancy and a half-sister to Big Will (Peaks And Valleys), a black-type placed five-time winner in the US.

Third dam Mighty Milk (Hero's Honor) was a multiple winner in the US and has five winners. She is a half-sister to Hot Brush (Broad Brush), a Grade 3 winner who was placed at Grade 1 level, and to Blazing Hot (Irish River), winner of the Listed Summer S.

Blazing Hot is the second dam of Going Ballistic (Lite The Fuse), winner of the Super Derby, then a Grade 2, and placed at Grade 1 level.

Gossamer Wings has an unraced 2-year-old colt by Frankel named Action. Her yearling is another colt by Frankel.