Fontaine was the third son of Gaspard-Théodore-Ignace de la Fontaine, who was appointed Governor of Luxembourg in 1841, and subsequently served as the country's first Prime Minister in 1848.
Fontaine was the third son of Gaspard-Théodore-Ignace de la Fontaine. Ignace de la Fontaine was appointed Governor of Luxembourg in 1841. Ignace de la Fontaine was served as the country's first Prime Minister in 1848.