Complex sentence: David O'Keeffe (b.1954) was Professor of European Law at University College London (University of London) (1993-2004) and Vice-Dean of the Faculty of Law.
Split into simpler sentences: David O'Keeffe (b.1954) is Emeritus Professor of European Law in the University of London. He was Professor of European Law at University College London (1993-2004) and Vice-Dean of the Faculty of Law.