Who were the patricians? How much power did they have?

The patricians lived in Rome compared to the plebians they were equal

The Patricians the distinction between patricians and plebeians in Ancient Rome was based purely on birth. Although modern writers often portray patricians as rich and powerful families who managed to secure power over the less-fortunate plebeian families, plebeians and patricians among the senatorial class were equally wealthy.

So the Patricians had a ton more power than the Plebians in Ancient Rome