Final answer:
The paterfamilias had the most authority in ancient Rome, holding power over all family members.
Explanation:
Paterfamilias, the oldest male head of a Roman household, had the most authority in ancient Rome. This individual held special legal powers over all family members, including the wife, adult sons, adult married daughters, and slaves. The authority stemmed from being the father of the family, with control over property and marriage decisions.
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