Adjective
Of or pertaining to oligarchy, or government by a few.
Source: Webster's dictionaryIn his Politica he states: "The government of Carthage is oligarchical, but they successfully escape the evils of oligarchy by enriching one portion of the people after another by sending them to their colonies." Source: Internet
In the main, the evidence is of tribes being led by kings, although some argue that there is also evidence of oligarchical republican forms of government eventually emerging in areas which had close contact with Rome. Source: Internet