No worries, no Grenouille nor any Baguette can help you.
"De l'Acre" would be a very respectable froggy family name, une acre being a popular territory unit back then, but I doubt the author thought this far.
Delacroix, as suggested belown would fit but is phonetically wrong.
-> whatever you choose is the good choice, you're the big men doing the translating for us pauvres mendiants 😃