The sirventes of the troubadour era has been broadly studied, but there are not overall explanations concerning theevolution of the sirventes genre in the Catalan-speaking lands of the fourteenth and fifteenth centuries. This paperpropounds a catalogue of sirventesos concerning its historical development, the troubadour models, rhetorical andgrammatical treatises, and genre assignment in rubrics. Our catalogue contains thirty-one Catalan sirventesos, includingtwenty-eight extant items and three items lost. In some cases the literary motifs of the sirventes cross boundaries in aprocess of poetic hybridization with other moral genres which borrow out themes, images and rhetorical strategies fromthe sirventes. In order to reflect this complexity, our catalogue also includes an annex with twenty-seven texts that are notproperly sirventesos but, due to their idiosyncrasy, can be placed in the periphery of the genre.