Primon, the Alpha Prime, is one of the oldest known bearers of the Matrix. As he predated Prima, who is characterized as the first Transformer created on Cybertron, it is conceivable that he predates the planet itself (much like the Covenant).
The Transformers cartoon
- For further information, see: Primon/The Transformers cartoon
Tales of the Beast Wars
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.