Complex sentence: Yet, the "Notitia Dignitatum", a unique early 5th-century imperial chancery document, still mentions three proconsuls (propraetors had completely disappeared), apparently above even the vicars in protocol though administratively they were subordinates like all governors.
Split into simpler sentences: Yet, the "Notitia Dignitatum", a unique early fifth-century imperial chancery document, mentions three proconsuls (propraetors had completely disappeared). These outranked even the vicars in protocol, though administratively they were subordinates like all governors.