By 1900, there were over 100 pretenders who had presented themselves to be the "lost dauphin". The popularity of the false dauphins peaked in the wake of the 1830 Revolution, and waned over the course of the century. Unlike the deaths of his parents, which were a national spectacle, the dauphin's death was a matter of administrative and medical record, and consequently easier to repudiate. The myth of the substitution of Louis-Charles before death was popularized and encouraged by Jean-Joseph Regnault Warin's immensely popular novel "Le Cimetière de la Madeleine" in 1800. Pretenders increased in regularity after the accession of King Louis XVIII during the Bourbon Restoration. Following the Revolution of 1830, claims by pretender were treated with heightened seriousness in France because of their ability to serve as critiques of King Louis-Philippe. The possibility of a Bourbon claimant being able to challenge Louis-Phillppe's legitimacy, was certainly the reason for the aggressive pursuit of the pretenders through the courts.