Bois D'Argent is out of Madonna Lily (Daylami), who was placed in France at two and three but did not win. Madonna Lily is also the dam of Grand Glory (Olympic Glory), champion older female in Europe in 2022 and in France in 2021, who won eight races including the Gr.1 Prix Jean Romanet and the Gr.3 Prix de Flore and was Group 1-placed in England.

Second dam Maria de la Luz (Machiavellian) was stakes-placed. She is also the dam of Minakshi (Footstepsinthesand), winner of the Grade 2 Canadian S., of Marble Garden (Royal Academy), a Listed-winning hurdler in France, and of Mirandola's Dream (Dalakhani), grandam of Plantstepsdream (Planteur), a Listed winner in Sweden.

Third dam Light Of Hope (Lyphard) won twice and is a full sister to the sire Alzao.

Further back in the family is Arapaho Miss (Danehill Dancer), out of the Listed-placed Happy Heart (Exit To Nowhere), a half-sister to Maria de la Luz. Arapaho Miss won the Gr.1 VRC Oaks in 2007, and her daughter Miami Bound (Reliable Man) won the Gr.1 VRC Oaks in 2019.