Book excerpt: Formal approaches to DPs in Old Romanian offers the first collection of papers on this topic published in English. All the analyses adopt the conceptual tools of generative grammar to explain the syntactic peculiarities of Old Romanian nouns, synchronically and diachronically. Old Romanian noun syntax displays non-trivial peculiarities both in the internal structure of the DP (e.g., inflected possessive marker, polydefinite agreement, optional definite article on proper nouns) and in the way the DP is used in clause derivation (e.g., variable location of object pronouns, reanalysis of the relative item from phrasal to head). The analyses emphasize the relevance of the data for a finer-grained typology of Romance/Balkan languages as well as for the theory of grammar.