The writer is a priest who tries to convert Hugo. He evokes the possibility of Victor Hugo's return to Catholic faith. He talks about a small essay he wrote, at Bishop of Liège's request, about the excesses of the press. He asks Cossin de Plancy to send him some observations of his statistics, and asks him not to correct him about his Belgian French.
Dechamps is unidentified. He sent a letter to Hugo (VMH/1/148).
Collin de Plancy was a French occultist, demonologist and writer, whose works inspired writers of his time, including Victor Hugo.