Abstract
This essay aims to determine the instances of non-canonical hendecasyllables in the poems of the Sicilian School. After establishing the existence of a gradient of canonicity and selecting a sample of verses in which it is equal to zero, I will proceed with an inspection of the variants in order to verify if it is possible to reduce them to a regular form. On the basis of those hendecasyllables refusing every correction, I will question the expedience of explaining non-canonical verses by resorting to some types of caesuras in Gallo-Romance decasyllables.