The dinastía of Primes was the ruling class of Cybertron eons ago. Formed por the first Thirteen Seven Cybertronians, the dinastía ruled Cybertron and protected the AllSpark until they were betrayed por one of their own.

The only named Primes are Prima, the first Prime, Sentinel, who remembered his ancestry, Bendy-Bus, whose status is unknown,and Optimus the last of the Primes.

IDW comics

We don't look like this in the film.
Eons ago, the AllSpark created thirteen beings, the first Cybertronians, who had the ability to mover between dimensions. They soon realized that the AllSpark's power, though...