[4] In 1876, he commissioned Claude Monet to paint decorative panels in the round drawing room, in his residence, the château de Rottembourg,[5] in Montgeron.

[6] Ernest Hoschedé, Alice, and their six children moved into a house in Vétheuil with Monet, his wife Camille, and their two sons, Jean and the infant Michel.

[7][8] The only child in the Hoschedé-Monet household to become interested in art,[9] Blanche began painting at the age of eleven and developed a fond relationship with Claude Monet.

[2] Blanche also painted alongside American expatriates Theodore Earl Butler and John Leslie Breck.

[2] The art dealer Paul Durand-Ruel purchased a Haystack painting by Blanche, and it currently is displayed in Monet's house in Giverny.

The couple lived in Rouen, where Jean worked as a chemist for his uncle Léon Monet,[11] and until 1913 in Beaumont-le-Roger.

[12][nb 1] Overcome with grief, Claude Monet suffered from depression and, from that point on, Blanche took over her father-in-law's household.