They are listed alphabetically by first name. Those whose first name is uncertain or unknown are listed by nickname or title, ignoring any initial definite article (i.e., lo, la). All entries are given in Old Occitan (where known) and a standardized spelling (where possible). Thus, e.g.,
William IX of Aquitaine is listed under Guilhem, the Occitan form of William.
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Riquer, Martín de (1975). Los trovadores: historia literaria y textos. Editorial Planeta.
Taylor, Robert A. (2015). A Bibliographical Guide to the Study of Troubadours and Old Occitan Literature. Medieval Institute Publications.