This paper investigates the authorship of the Chanson spirituelle (1545), an anonymous collection whose attribution has been variously linked to the poets Clément Marot, Eustorg de Beaulieu, and especially Matthieu Malingre. Using a stylometric approach, selected anonymous verses from the collection are compared against balanced corpora of approximately 6 000 words for each of the three candidate authors. Although the results must be interpreted cautiously, given the absence of any clear positive signal, they suggest that the different pieces of the collection may not have been written by the same author.