Sophie Roch. Sophie Roch was the daughter of F.-E. Roch and the sister of C. Roch.

Between the ages of 13 and 20, Louis Pasteur completed about 40 pastels and drawings, constituting quite an anthology of portraits of 19th century men and women. By embarking on his career as a scientist, Louis Pasteur abandoned his pastels for the marvels of the microscope.