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The Emperor Augustus bequeathed the Praetorian Guard a substantial sum in his will, but it was not until Tiberius' reign that gifts of money were thought mandatory. The Praetorian Guard received such gifts for turning a blind eye when Sejanus, their prefect, fell from power. Each Praetorian Guard received 10 gold pieces for refraining from defending Sejanus's. In 41 A.D., after the assassination of Caligula, the Guard supported Claudius, and after a brief time the Senate learned that the Guard had installed him on the throne. Claudius gave them 150 gold pieces, or some 3,750 denarii, to which the senators' 100 sesterces were added annually to commemorate Claudius's accession.
| Imperial Donativa to the Pratorian Guard 14 - 193 A.D. | |||
|---|---|---|---|
| Year | Emperor | Provocation | Denarii |
| 14 | Augustus | Last will | 250 |
| 31 | Tiberius | Loyalty in Sejanus crisis | 1,000 |
| 37 | Caligula | Upon accession | 500 |
| 41 | Claudius | Upon accession | 3,750 |
| Annually | Claudius | Anniversary of accession to the throne | 25 |
| 54 | Nero | Accession | 3,750 |
| Pay for assassinations | 500 or less | ||
| 69 | Galba | Promised by Nymphidius Sabinus, but not paid | 7,500 |
| 69 | Otho | Promised | 1,250 |
| 69 | Vitellius | Promised | 1,250 |
| 69 | Vespasian | Regular donativum | unknown |
| 79 | Titus | Regular donativum | unknown |
| 81 | Domitian | Considered doubling the donativum but opted for regular sum | unknown |
| 96 | Nerva | Regular donativum | unknown |
| 98 | Trajan | Regular donativum | unknown |
| 117 | Hadrian | Double normal sum | unknown |
| 138 | Antonius Piso | Regular donativum and upon daughter's marriage | unknown |
| 161 | Marcus Aurelius | Joint rule vith Verus | 5,000 |
| 180 | Commodus | Regular donativum; second promised but unpaid | unknown |
| 193 | Pertinax | Forced to pay donativum of Commodus | 3,000 |
| 193 | Didius Julianus | Purchased the throne | 7,250 |
| 193 | Septimius Severus | Promised a donativum but paid less | 250 |