Aeneas and Prince Samual's World are two princely names. Aeneas was a prince of Troy and ancestor of Romulus, the founder of Rome, the new Troy. Poul Anderson's character, Manuel Argos, founder of the Terran Empire, modeled his Empire on that of Rome. The planet Aeneas, after rebelling against the Argolid Empire, is occupied by Terran forces and administered by High Commissioner Desai.
In Jerry Pournelle's King David's Spaceship, the planet, Prince Samual's World, is incorporated into the Second Empire of Man and administered by High Commissioner Ackoff who lets a local dynasty believe that they will control a unified planet even though he knows that power will inevitably shift towards the imported Traders, technicians, diplomatic personnel and civil servants.
Thus, Pournelle, like Anderson, describes a plausibly complicated society on a colonized planet. Both planets have a University but Prince Samual's World is technologically backward.