Answer
Septimius Severus, Pertinax's successor, emerged as the victor in a tumultuous power struggle following Pertinax's assassination. Severus, an experienced general from Pannonia, capitalized on the chaotic situation in Rome and secured the support of his legions. Upon entering Rome, he swiftly eliminated his rivals and established himself as the new emperor, marking the beginning of the Severan dynasty and a new era in Roman history.