Augustus' Succession Plan: Intended a kin-based imperial succession, although faced challenges with his own heir.
Julian Bloodline Emperors:
Augustus: Julian blood via mother Atia.
Tiberius: Claudian son of Livia, Augustus’ wife.
Caligula: Julian blood via mother Agrippina the Elder.
Claudius: Julian blood via mother Antonia.
Nero: Julian blood via mother Agrippina the Younger.
End of the Julio-Claudians: Nero declared hostis by the senate and committed suicide (68 CE).
Consequences: Terrible leadership and instability on the fringes of the empire due to Nero’s neglect of military matters.
Year of Four Emperors: Quick succession of emperors Galba → Otho → Vitellius → Vespasian.
Background: Rebellions in Gaul by Vindex supported by Galba.
Galba's Rule: Praetorian guard and senate support Galba as princeps (68 CE).
Otho's Role: Galba’s successor attempt leads to Otho’s assassination of Galba; becomes princeps.
Vitellius' Rise: Legions in Germania reject Galba and support Vitellius, leading to Otho's suicide and Vitellius’ declaration.
Vespasian’s Claim: Eastern provinces support him, leading to Vitellius’ defeat.
Background: Significant military background, initiated in Judaea (66 CE).
Claim to Power: Supported by troops and governors, defeats Vitellius.
Preventing Civil War:
Legal Authority: Lex de Imperio Vespasiani solidified imperial powers.
Reforms:
Civic: Rescinded large concentrations of legions and reinforced traditional Roman career paths.
Military: Expanded recruitment in provinces and eliminated local legions.
Building: Major construction projects including the Colosseum and temples.
Key Emperors: Vespasian, Titus, Domitian.
Titus’ Reign (79-81 CE): Known for handling disasters (Pompeii eruption, Roman fire).
Domitian’s Reign (81-96 CE): Described as tyrannical but also a significant builder.
Nerva’s Ascension: Appointed by the senate after Domitian's reign, erasing Domitian's legacy.
Financial Reforms: Funding for child support to Italians and adopting Trajan as successor, marking a shift in imperial succession.
Qualitative Succession: Unlike previous dynasties, heirs selected for qualifications, leading to improved Roman governance.
Emperors: Nerva, Trajan, Hadrian, Antoninus Pius, Marcus Aurelius.
Optimist Princeps: Declared by the senate, known for effective military campaigns, notably in Dacia.
Building Projects: Column of Trajan, Temple of Trajan, expansion of various city infrastructures.
Artistic Features: Continuous relief depicting Dacian Wars, showcasing Roman military superiority and Trajan’s leadership.
Reign Focus: Consolidation rather than expansion. Known for building Hadrian’s Wall and enhancing city infrastructure.
Successor System: Established Pius as successor and endorsed further succession management, continuing stability.
End Note: Prosperity under the Five Good Emperors maintained until the ascension of Marcus Aurelius’ son Commodus, which brought new challenges.