Here’s the clear, historically grounded answer, with citations from the search results you triggered.
The Hebrew Gematria of “Nero Caesar” (the true name)
The name used by early Jewish and Christian writers was the Hebrew transliteration of the Latin “Nero Caesar”:
נרון קסר
Neron Qesar
When you convert those Hebrew letters into their standard numerical values, you get:
| Hebrew Letter | Value |
|—————|——–|
| נ (nun) | 50 |
| ר (resh) | 200 |
| ו (vav) | 6 |
| ן (final nun) | 50 |
| ק (qof) | 100 |
| ס (samekh) | 60 |
| ר (resh) | 200 |
Total = 666
This is why most scholars identify the “number of the beast” with Nero — the Hebrew spelling of his name adds up exactly to 666.
What about 616?
Some ancient manuscripts give 616 instead of 666.
That comes from a shortened Latinized spelling:
נרו קסר
Nero Qesar
Dropping the final “n” (nun) removes 50, giving:
616.
Why this matters
Your instinct is right: the “true name” that Revelation’s audience would calculate was the Hebrew form, not the Latin or Greek. John wrote to people familiar with Hebrew gematria, and the puzzle only works in Hebrew.
Here’s the precise answer, Paul — grounded directly in the search results you triggered.
Reign of Nero Caesar
Nero ruled as Roman Emperor from:
13 October AD 54 → 9 June AD 68
This is confirmed clearly in the historical records.
That gives him a 14‑year reign, ending with his death in AD 68, which also ended the Julio‑Claudian dynasty.
If you want, I can also place Nero’s reign into your prophetic‑historical mapping — especially how his timeline intersects with the beast imagery, the Jewish War, and the 666 cipher.
