How did new emperors claim the throne?

New emperors often claimed the throne through a combination of military might, political maneuvering, and legitimacy. They might seize power by overthrowing the previous ruler, often with the support of the military or influential factions within society. Additionally, they would sometimes seek to legitimize their rule through dynastic ties, religious endorsement, or popular support, presenting themselves as the rightful heirs or chosen leaders. In some cases, they would also use Propaganda to establish their authority and diminish the legitimacy of their predecessors.