The Constitutional Powers of the Senate During the Reign of Augustus
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THE CONSTITUTIONAL POWERS OF THE SENATE DURING THE REIGN OF AUGUSTUS OWEN P. PETTIT SUBMITTED IN TOTAL FULFILMENT OF THE REQUIREMENTS OF THE DEGREE OF MASTER OF ARTS (BY THESIS ONLY) DECEMBER 2011 THE SCHOOL OF HISTORICAL AND PHILOSOPHICAL STUDIES THE UNIVERSITY OF MELBOURNE ABSTRACT The question addressed in this dissertation is that of how the radical changes initiated by Augustus between 28 and 19 BCE affected the constitutional status of the res publica. The focus in particular is the repercussions of these constitutional changes on the legal prerogatives of the Roman Senate. The first chapter looks at the changes to the state orchestrated by Augustus between 28 and 19 BCE. The restitutio of 27 and the three settlements of 27, 23 and 19 BCE are reconstructed and investigated with special reference to how they affected the legal status of the Senate and its members. The second chapter discusses the implications of the constitutional changes to the state for Augustus, the Senate and the individual senators. Augustus remained a member of that body while establishing his pre-eminence, and his interactions with and in the Senate help to understand the relationship between the autocratic emperor and the oligarchical senators. The third and fourth chapters are a review into the interactions between the Senate and Augustus throughout his reign, with an analysis of how closely the constitutional responsibilities and privileges of the princeps and the Senate were observed. The third chapter addresses all known accounts of the Senate exerting control in the res publica, whether through its power or its influence. The actions of the Senate are discussed thematically: foreign policy, the senatorial court, administration, legislation and ceremonial roles. The fourth chapter investigates the actions of the emperor and his new imperial bureaucracy, and contrasts these actions with the prerogatives of the Senate. The two aspects of imperial encroachment – by Augustus himself and by the combined senatorial, equestrian and freedmen members of his bureaucracy – are treated separately in this final chapter. The intent and effect of the study is to understand the legal foundations of Augustus’s power and the extent to which he respected the new constitution of the res publica through his actions from 28 BCE-14 CE. The arguments combine to show that the prerogatives of the Senate were not changed during the redefinition of the Roman 2 state; rather, Augustus and his bureaucracy carried out many traditional senatorial duties without actually removing any powers from the Senate. Augustus was careful to respect the honour of the Senate and allowed them to keep most of their Republican privileges. While the prerogatives of the Senate had not changed, and their prestige in society was maintained by Augustus, in practice the Senate had little influence on the major decisions of the new imperial res publica. 3 DECLARATION This is to certify that: (i) the thesis comprises only my original work towards the Masters (ii) due acknowledgement has been made in the text to all other material used (iii) the thesis is 31849 words in length, inclusive of footnotes, but exclusive of tables, maps, bibliographies and appendices Signed: ………………………………………………….. 4 AKNOWLEDGEMENTS I would like to thank my eternally patient wife and family for their unwavering support. Special thanks also to Frederik Vervaet who has been an exceptional and dedicated supervisor. 5 TABLE OF CONTENTS Abstract 2 Declaration 4 Acknowledgements 5 Table of contents 6 Introduction 9 Chapter 1. The Developing Constitutional Position of Augustus 15 1.1. Introduction 15 1.2. The Res Gestae Divi Augusti 16 1.3. Cassius Dio 17 1.4. The Official Position of Augustus 19 1.4.1. 28 BCE 19 1.5. The First Settlement Of 27 BCE 22 1.5.1. Restitutio 22 1.5.2. The Power to Control Laws 23 1.5.3. Political Power 24 1.5.4. Provincial Power 25 1.5.5. Conclusion 26 1.6. The Second Settlement of 23 BCE 26 1.6.1. Introduction 26 1.6.2. Consular Imperium 28 1.6.3. Tribunicia Potestas 28 1.6.4. Repercussions Of 23 BCE 29 1.7. The Third Settlement Of 19 BCE 30 1.8. Conclusion 30 Chapter 2. The Imperial Senate 32 2.1. Introduction 32 6 2.2. The Emperor’s Senate 32 2.2.1. Introduction 32 2.2.2. Organising Attendance 33 2.2.3. Senatorial Reluctance 34 2.2.4. The Consular Nobilitas and the Pedarii 35 2.2.5. The Future of the Senatorial Order 37 2.2.6. The Ideal Senate? 38 2.2.7. Convening the Senate 39 2.3. The Emperor as Senator 40 2.3.1. Introduction 41 2.3.2. Seating Arrangements 41 2.3.3. Methods Of Discussion 43 2.3.4. Augustus’s Consilium 43 2.3.5. Decrees Of The Senate 44 2.4. Conclusion 46 Chapter 3. The Senate’s Attested Actions 47 3.1. Introduction 47 3.2. Foreign Policy 48 3.2.1. Key Attestations 48 3.2.2. Foreign Policy in Rome 49 3.2.3. Embassies and Diplomacy 50 3.2.4. Triumphs 51 3.3. The Senatorial Court 53 3.3.1. Key Attestations 53 3.3.2. The Senate as a Court 53 3.3.3. The Case of Cornelius Gallus 54 3.4. Administrative Roles 56 3.4.1. Key Attestations 56 3.4.2. Grants of Power 57 3.4.3. New Imperial Administration 59 3.5. Legislation 60 7 3.5.1. Key Attestations 60 3.5.2. Augustan Laws 60 3.5.3. Augustus’s Immunity from Prosecution 61 3.6. Ceremonial Acts 62 3.6.1. Key Attestations 62 3.6.2. The Phrasing of Senatorial Decrees 63 3.7. Conclusion 63 Chapter 4. Imperial Encroachment 65 4.1. Introduction 65 4.2. The Imperial Bureaucracy 66 4.2.1. Introduction 66 4.2.2. Senatorial Officials 67 4.2.3. Equestrian Officials 71 4.2.4. Other Officials 76 4.2.5. Conclusion 77 4.3. Encroachment by the Emperor 79 4.3.1. Introduction 79 4.3.2. Foreign Policy 79 4.3.3. Law-Making 83 4.3.4. Other Imperial Roles 86 4.4. Conclusion 87 Conclusion 88 Bibliography 90 Primary Sources 90 Secondary Sources 91 8 INTRODUCTION In 28 BCE Augustus was officially named princeps senatus: the first man in the Senate of Rome. Augustus needed a new system if he wished to remain pre-eminent in the Roman res publica. The only official roles that matched his triumviral power were rex or dictator, but these were associated with Tarquin and Julius Caesar, whose precedents Augustus didn’t want to follow. Institutional change had characterised the civil wars and Augustus could not maintain the role that triumviral power gave him and claim to be re-establishing the res publica. The years 28-19 BCE were characterised by Augustus adapting his constitutional position in the res publica, ostensibly to protect the state. As a direct result, the role and prerogatives of the Roman Senate were also modified. The Senate still played an important role in the machinery of the state. Thus the legal prerogatives of senators continued to include greeting foreign embassies on behalf of Rome, codifying administration in public provinces, and issuing decrees for moral reform. The primary aim of this work is to investigate the formal senatorial prerogatives of the Augustan era, and assess how closely they were actually reflected by the actions of the Senate and respected by those of Augustus. The thesis will also study whether Augustus’s interactions with the legal prerogatives of the Senate adapted over the course of his reign. The Senate of Augustan Rome has received occasional attention over the course of the last century of scholarship, but it is time for a review of senatorial prerogatives and associated actions. Recent relevant books include W.K. (Patrick) Lacey’s Augustus and the Principate (1995) and Richard Talbert’s The Senate of Imperial Rome (1988).1 Neither, however, pays close attention to the legal prerogatives of the Senate. The authors focus instead on the actions and character of Augustus (and future emperors). Ronald Ridley’s analysis of the Res Gestae (2003) is excellent, and Cooley’s recent book on the same subject (2009) is also relevant to the constitutional powers of the 1 W.K. Lacey, Augustus and the Principate: The Evolution of the System (Leeds: Francis Cairns, 1996); Richard Talbert, The Senate of Imperial Rome (Princeton: Princeton University Press, 1987). 9 Senate, as are several recent commentaries on primary historians.2 However, none of these works is specifically designed to examine the direct actions of the Senate in light of their alleged customary prerogatives. This thesis aligns with a new concept of the constitutional position of Augustus, as recently presented by Frederik Vervaet.3 Vervaet presents convincing evidence that Augustus was a triumvir of Rome until his restitutio speech in the Senate in 27 BCE, which was effectively an abdication of his triumviral role. Vervaet argues that Augustus was coldly precise in re-arranging the res publica as part of the three settlements from 27 to 19 BCE that gave him the powers that he needed to control the Roman Empire. This thesis aims to present an analysis of the legal situation of the Senate in Rome in the context of this new evaluation of the official position and political strategy of Augustus. This work is divided into four chapters. Chapter One will outline the position of Augustus in the res publica: identifying the specific legal changes to Augustus’s position that came about in the period 28-19 BCE.