“…27 Note that this is not the only change to suggest that the syntax of OF in the earliest texts of the period (EOF; first half of the 12th century and earlier) is quite different from that reflected in later texts (LOF; 13th century). First, the distribution of null subjects is distinct (Hirschbü hler, 1989(Hirschbü hler, , 1990Roberts, 1993;Labelle, 2007); they are possible in all types of embedded clauses in EOF, but not LOF. Second, the clausal subordinator ce que is productive in EOF, occurring with clauses acting as subject, direct 25 Extraposition is, however, almost certainly available in OF.…”