Law of the Roman Kings-753-510 B.C.E

After Romulus had distinguished the persons of higher rank from those of inferior condition, then he passed laws and apportioned the duties for each to do: the patricians to be priests and magistrates and judges; the plebeians to be farmers, cattle breeders, and artisans of gainful trades. ... He entrusted and gave the plebeians to the patricians by permitting each plebeian ... to choose for his patron the patrician whom he wished ... and by calling this protection patronage.