Primon
- Primon is presumably an Autobot in Generation 1 continuity.
Primon is the oldest known bearer of the Matrix. As he predated Prima, who is characterized as the first Transformer created on Cybertron, it is probable he predates the planet itself (much like the Covenant).
Fiction
Tales of the Beast Wars
Reaching the Omega Point
Primon was seen twice in a swirl of visions experienced by the Covenant at the coming of the Chronarchitect - once as part of a long lineage of Primes, and again having the Matrix torn from his chest by the Liege Maximo. His ultimate fate, and any other exploits, remain unknown. And probably always will.
(Primon is conspiciously absent from other lists of past Primes, even those by Simon Furman who wrote this text story.)