The Maximus family is a Maxis-made family that could be downloaded from the official The Sims website, and should still be available from at The Sims 1 Depot. The page at SimEchoes has pictures of their home at 4 Sim Lane. The family consists of MAHUIZOH "Jimmy" Maximus, a Criminal Mastermind and Princess Zaghawa, a feature star in the Entertainment career track.
Maximus: "greatest," superl. of magnus "great, large"
MAHUIZOH: a unisex name of Nahuatl (Aztec) origins meaning "glorious person"; it is unknown why the name is in all-caps in-game.
Jimmy: a nickname variant of James, a Hebrew name meaning "he who supplants". Why this is a nickname for MAHUIZOH is unclear; it can be speculated that the character chose to take an Anglicised name, though it bears little relation to his real name (possibly as a cover for his criminal activity).
Zaghawa: is one of several (now unused) names for the Beri people, an ethnic group indigenous to Western Chad and Eastern Sudan.
While players will often place this family in Neighborhood 1, it can be imported into any neighborhood.