Luxembourg is out of the placed Attire (Danehill Dancer), whose first major runner was Leo De Fury (Australia), winner of the Gr.2 Mooresbridge S. She is also the dam of the winner Sense Of Style (Zoffany), placed in the Gr.3 Ballylinch Stud Priory Belle 1,000 Guineas Trial and the Gr.3 Lanwades Stud Denny Cordell Lavarack Memorial S., and of Luxembourg's full brother Hiawatha, a winner placed in the Gr.3 Eyrefield S. Attire is a full sister to Forgotten Voice, winner of the Gr.3 Glorious Stakes.

The second dam Asnieres (Spend A Buck) was a winner and is a half-sister to Arcangues, winner of the Grade 1 Breeders' Cup Classic and later a sire. She also produced Australie (Sadler's Wells), a Group 3 winner in France and dam of the Listed winners Hawke, who was Group 3-placed, and Mireille, as well as the Listed-placed winner Keepers Hill (Danehill). She is the grandam of the half-brothers Private Jet (Aussie Rules) and Princedargent (Kendargent), both Listed winners and Group 3-placed.

The third dam Albertine (Irish River) won twice and was placed in the Prix de l'Opéra, then a Gr.2. She produced ten winners from 17 foals, headed by Arcangues (Sagace), a dual Group 1 winner and sire, Agathe (Manila), a Group 3 winner who was placed in a Group 1 Classic, and the sire Alamo Bay (Nureyev), a Listed winner who was Group 3-placed. Two of her daughters are the dams of Cape Verdi (Caerleon), winner of the Gr.1 1,000 Guineas, and Angara (Alzao), a dual Grade 1 winner in the US.

This is a distinguished Wildenstein family that includes Agathe's Group 1-winning offspring Aquarelliste (Danehill), winner of the Gr.1 Prix de Diane, Gr.1 Prix Vermeille and Gr.1 Prix Ganay, and Artiste Royal (Danehill), as well as the Group 1 performers Ziyad (Rock Of Gibraltar) and Ame Bleue (Dubawi).

Attire has three younger full siblings to Luxembourg: the unraced three-year-old filly Vanilla, an unnamed two-year-old filly and a yearling colt. She was covered by Frankel in 2023.