[4] On 13 September 2011, the site of his laboratory at the University of Geneva was designated a historical chemical landmark of Switzerland.

[5] Jean Charles Galissard de Marignac was born in Geneva on 24 April 1817,[6] to Jacob Galissard de Marignac, a judge, and Susanne Le Royer, a sister of well-known chemist and physiologist Elie Le Royer.

Marignac worked briefly with Justus von Liebig,[7] and with Alexandre Brongniart in the Sèvres porcelain factory.

[4] In undertaking this work he had, like Belgian chemist Jean Stas, the purpose of testing Prout's hypothesis,[1] the idea that atomic weights are multiples of hydrogen.

[10] By establishing well-defined values for a wide variety of elements, he seriously contributed to the underlying basis of inorganic chemistry.

[1][10] Galissard de Marignac is buried with his wife Marie, née Dominicé, and their son Edouard (1849-1871) at the Cimetière des Rois, which is considered the Pantheon of Geneva.