Firmus

Firmus (died 273) was a Roman usurper against Aurelian. His story is told by the often unreliable Historia Augusta twice, with the first account the most sketchy and reliable.

Firmus was a businessman from Seleucia, with business interests ranging from India to Egypt. He was associated with Zenobia of the Palmyrene Empire. After the Emperor Aurelian defeated the Palmyrans, Firmus staged an uprising in Alexandria in Egypt, interrupting the grain supply on which Rome depended. Aurelian was obliged to defeat and kill Firmus.

Firmus never proclaimed himself emperor, but fought to support the second Palmyrene uprising against Aurelian. It is possible that Firmus was actually the name of the general sent by Aurelian to suppress the revolt, as Egyptian papyri of the time have the presence of one Claudius Firmus, corrector. Another possibility is that the author of the Historia Augusta — the only source to name Firmus — invented this figure in parallel with another Firmus, an African usurper under Valentinian I.

According to Historia Augusta ("Firmus"), Firmus was a man of great wealth. He had his house fitted with square panels of glass, and owned a huge library. His commercial relationships involved Blemmyes, Saracens, and India. He had two elephant tusks, which later Aurelian projected to use as a basis for a statue to Jupiter and which were actually given as a present by Carinus to a lover of his. Physically, Firmus was noteworthy, being huge and very strong. He ate and drank a lot.

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