The observation that personal pronouns typically sound highly unnatural as the object in of-PP dependents of English noun phrases dates back at least to Lyons (1986: 136). In a table comparing the frames [NP’s N], [(Det) N of NP], and [(Det) N of NP’s], he systematically excludes accusative pronouns from the NP position in the second of these. We will employ the terms used by The Cambridge Grammar of the English Language (Huddleston and Pullum et al. 2002) for these three constructions: s-genitive, of-PP, and oblique genitive respectively.