Thirteen

When Primus first created Cybertron, he created a crew of thirteen living robotic beings to man him. These beings, in imitation of Unicron's transformation abilities, were able to change their forms into the likeness of vehicles, weapons, and machinery. They were the first Transformers.
Many of the Thirteen died in a cataclysmic first battle with Unicron, where he was sucked down into a black hole and trapped along with his acolyte known as The Fallen, one of the Thirteen who had turned against his brothers and joined Unicron.
Of those that survived many abandoned their original functions and were lost to time. Only Vector Prime is known to still be following the path he was set upon by Primus.
The Thirteen
The identities of the Thirteen remain shrouded in mystery.
Confirmed members are:
- Prima, the first Transformer and first Matrix-Bearer
- The Fallen (original name unknown)
- Vector Prime
Possible hinted members are:
- Rumor on Cybertron says that he is one of the 13 and that his bar exists outside regular space-time, though the rumor is chalked up to the overactive imaginations of the bar's drunken patrons. (The story "Prime Spark" from the Legends anthology confirms the rumor but is of questionable canonical status.)
- The Liege Maximo
- G2 establishes he was created at the same time as the first Prime, but implies that this was perhaps unintended, so leaving open whether he should count. Confirmed in Simon Furman's "Alignment" story as one of the first 13, but the story is "unofficial" and of debatable canonicity.
- In Fun Publications' fan club magazines, Unicron spends a period during Cybertron focusing his energies on gathering up the timelost original 13 Transformers in order to destroy them. In the accompanying comic, he has expressed interest in the members of the fan club combiner members.
Numerous other very ancient Transformers exist, including Alpha Trion (A3), Boltax, The Keeper, and the Last Autobot but none have been yet included in the ranks of the first thirteen.

