When did zosia curie die?

Answer 1

I think she died late January, 1876

Yes, Zosia Skłodowska (her sister, Marie, married Pierre Currie--their family name was Skłodowska) died in January of 1876 at the age of thirteen from typhus.

Answer 2

Zosia Curie, the daughter of Marie Curie, died on February 6, 1941, at the age of 54. She was a scientist and author known for her work in medicine and radiology.