In this section we aim to present an ongoing index to the people who feature in the various inquisitions in Doat 21-24: the inquisitors, notaries and witnesses, the deponents, and the heretics, believers and supporters about whom they testify. This will be updated as we gather more information and will include folio references, lists of family members mentioned, and cross-references both to other inquisition records (such as Toulouse 609) and the secondary sources. In this way we hope to provide a useful tool for students of heresy in Languedoc.