Claudia Fabrizio is Professor of Historical and Theoretical Linguistics at Pegaso Digital University. She obtained her degree from Sapienza University of Rome and subsequently pursued advanced studies and research in Geneva, Naples, Manchester, Leiden, and Oxford. Her research primarily focuses on diachronic morphosyntax, with particular emphasis on Latin and Italo-Romance languages. Her work explores various aspects of linguistic structure, including argument marking and valency, the syntax of non-finite verb forms (such as infinitives and participles), the morphology and semantics of nominalization and verbalization, and semantically-driven coding phenomena within nominative-accusative systems, particularly in relation to alignment and subjecthood. She has also contributed to the study of the history of linguistic thought and the cultural reconstruction of the Indo-European context.