Jupiter best and greatest, preserver of the empire.
Iuppiter optimus maximus, conservator imperii.

Politicians
Diocletian
Roman emperor (244-311, r. 284-305) of Dalmatian origin who ended the Third Century Crisis via the Tetrarchy. The first to abdicate voluntarily; his reign also produced the Great Persecution and Maximum Price Edict.
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Source: ディオクレティアヌス貨幣・碑文の定型句Verified