Abstract: The discovery of an ex-libris by Jean Corone on the Toulouse copy of Marliani’s Topographia antiquæ Romæ invites us to reread his work as a reader and printer in the Protestant cities of Pamiers and Montauban in the early sixteenth century. His annotations and underlinings testify more, perhaps, to the interest in Rabelais’s publishing company than to the historical content of the book.