# The conspiracy of Maternus is dated to 187 in the reign chronology as received

Date: 187

## The fact

Livius records the 187 Maternus conspiracy. Herodian independently narrates serious internal military-brigand disorder under Commodus.

It is one event.

## Context

An armed conspiracy against the emperor is a resilience-harm path and may also be a response to misrule. Shared provincial commands remain. Do not invent a unique rebel census.

[Commodus](/people/commodus)’s documented role is bounded by other offices and collaborators named in the sources below. Sharing a field with them is not a reason to drop a documented act, and it is not a reason to assign later consequences done in the name after death.

Livius lists a conspiracy of Maternus in 187. Herodian’s narrative of a deserter-brigand threat is a later literary carrier with possible conflation. This is not Lucilla 182 and not the 192 palace plot.

Named person as heading of the dated public instrument. Later editors, museums, printers, or offices share publication. Complex where later carriers are the surviving public file.

## Evidence and sources

Livius — Commodus and Herodian, Roman History — Livius English independently describe this instrument.

Official or archival record: Livius — Commodus (https://www.livius.org/articles/person/commodus/; Livius.org).

## Significance

Maternus 187 is a resilience-harm path of medium confidence on Herodian’s story-shape, high that Livius lists the year.

## What is established and what is not

Established as a sourced public record of this instrument at the date assigned here.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Established here: a sourced, dated public instrument with a named contribution by Commodus.

They are not a public rating.

The driver `democratic-resilience` is attached because the mechanism named in Significance follows from this instrument, not because a standing list of welfare headings needed another tick. Commodus did not file a later UNESCO form, a later Loeb colophon, or a later museum label as a personal act. A portrait or conventional bust is not this mechanism. Allegation, reconstruction, and established occurrence stay distinct. Label Herodian as later literary carrier. Split from Lucilla and from 192. Keep the carrier date of later English distinct from the received historical year stored in the date field. Do not read a later English edition as a recovered autograph of Commodus.

## People

- Commodus: https://factrail.ai/people/commodus

## Drivers

- Democratic Resilience: https://factrail.ai/drivers/democratic-resilience

## Sources

- https://www.livius.org/sources/content/herodian-s-roman-history/
- https://www.livius.org/articles/person/commodus/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/com-maternius-conspiracy-187