Maurice Maréchal is the author of the series 'Prudence Petitpas', a series about an old lady who does detective work. Born in Waremme, Maréchal got in touch with publisher Le Lombard magazine through his neighbour Raymond Macherot in 1957. Prudence Petitpas and her cat, Stanislas, made their first appearance in Tintin in that same year. Several stories were published in this magazine until 1969. Maréchal made his stories alone or in cooperation with scenario writers like René Goscinny, Raymond Macherot, Greg and Mittéï.
Maréchal then dropped of from the comics radar for several years, because of his dayjob as a teacher in French and Spanish languages at the Athénée Royal de Verviers. When he retired from his dayjob, Maréchal made five new stories with 'Prudence Petitpas', this time published in the magazine Spirou. Maurice Maréchal passed away in Polleur, Belgium, in 2008.