Liliane Madeleine Victor Haegeman ARB (born 1 July 1954) is a Belgian professor of linguistics at Ghent University. She received her PhD in English linguistics in 1981 from Ghent University, and has written numerous books and journal articles thereafter. Haegeman is best known for her contributions to the English generative grammar, with her book Introduction to Government and Binding Theory (1991) well established as the most authoritative introduction on the Principles and Parameters approach of generative linguistics. She is also acknowledged for her contributions to syntactic cartography, including works on the left periphery of Germanic languages, negation and discourse particles, and adverbial clauses. As a native speaker of West Flemish, her research has also touched upon the comparative study of English and West Flemish in terms of the subject position and its relation to the clausal structure. Source: Wikipedia (en)