Who is Old Priest from Ourika: An English Translation and what is their importance?

The old priest is the only one of Mme. de B's friends friends who remains with her after the start of the French Revolution. He considered himself a spiritual man rather than a religious man and often went so far as to mock religion. When Mme. de B, Ourika and Charles left Paris and moved to Saint-Germain. the old priest accompanied them.