The paper examines how Roman emperors used coins and medallions during the 3rd-century crisis to promote the dynastic ideologies and succession policies of the ruling house. Roman numismatics expands our knowledge of the nuances of dynastic politics. The keystone was the emperor; it also concerned the figures of empresses, heirs and ancestors. The analysis of numismatic evidence shows the mechanisms of constructing an image of dynastic unity, harmony in the imperial family, and succession stability in the Roman Empire.