Abstract Since their discovery, scholars have known about the close textual relationship between two sixth-century Greek codices of the Gospels. That Codex Purpureus Petropolitanus (N 022) and the Rossano Gospels (Σ 042) were copied from the same exemplar is rarely questioned. However, both manuscripts also feature primary and secondary corrections. Based on the ink, pen nib width, scribal hand and textual affinity of the corrections, as well as some similar mistakes elsewhere in the manuscripts, it seems that the same scribe corrected both manuscripts using the same second exemplar. Specifically, the scribe of 042 was responsible for secondary corrections in both 042 and 022, and the second exemplar to which the corrections were made might have been a close textual relative to another sixth-century purple codex, Codex Beratinus-1 (Φ 043).
Elijah Hixson (2018) studied this question.