Edmond, Prince de Polignac was a composer. He was the youngest son of Charles X's minister Jules de Polignac. In 1893 he married Winnaretta Singer (1865-1943), a friend of Jacques-Emile Blanche. She was the daughter of Isaac Merritt Singer, the sewing machine industrialist and Isabelle Singer, née Boyer, and the sister of Isabelle-Blanche, Duchesse Decazes de Glucksbierg.
Edmond de Polignac was a pupil of Reber and forerunner of Satie, according to Blanche. He was a composer of choral music, romances and operas. He was a regular visitor to Dieppe. In 1889, his name appeared on a list of invited guests to a dinner in honour of JW at the Criterion, London (#05635).
Kahan, Sylvia, Music's Modern Muse: A Life of Winnaretta Singer, Princesse de Polignac, Rochester, New York, 2003; Jacques-Emile Blanche peintre (1861-1942) exhibition catalogue, Musée des Beaux Arts, Rouen, 1997, pp. 44, 210.