Who ruled Between the reigns of Marcus Aurelius and Diocletian what type of rulers were usually in control of the Roman Empire?

Between the reigns of Marcus Aurelius and Diocletian, the Roman Empire was often ruled by a series of emperors who dealt with significant political instability, including military usurpers and short-lived rulers. This period, known as the Crisis of the Third Century, saw frequent changes in leadership, with many emperors being appointed and deposed by military factions. As a result, the empire experienced a lack of centralized authority and governance, leading to fragmentation and economic decline. The eventual rise of Diocletian marked a significant shift towards more structured and autocratic rule.