“…Kayne's PhD dissertation (defended in 1969 and published as Kayne 1975) is considered to be an introduction of generative linguistics into the field of Romance Languages (Pica & Rooryck 1994, Pescarini 2022), and the conferences LSRL -Linguistic Symposium on Romance Languages (since the early 1970s) and Going strong -Cardinaletti & Starke 1999), which were informative not only about the syntax of nominal expressions and the structural conditions governing their distribution, but also about language acquisition (Belletti & Guasti 2015, Varlokosta et al 2015, Guasti 2017. Also, research on Romance null subject pronouns amplified our knowledge of parameters, particularly the association between pronominal forms and agreement and on how clusters of different grammatical properties are set together, as part of a unique parametric choice (Chomsky 1981, Jaeggli 1982, Rizzi 1982, Kato 1999, Kato & Negrão 2000.…”