CCCC MS 403, in Greek, is one of the books believed in Parker's time to have come from Canterbury and ultimately from Theodore of Tarsus (d. 690), archbishop of Canterbury. It is a typical late fifteenth-century paper copy of the three most commonly studied plays of Euripides, Hecuba, Orestes (wrongly entitled Electra) and Phoenissae, with Palaeologan scholia. It is written by two hands (A: ff. 1-41v; B: ff. 42-118r).