|Usurper of the Roman Empire|
|Reign||260 or 260-261|
|Full name||Lucius Mussius Aemilianus|
|Died||261 or 262|
Lucius Mussius Aemilianus (d. 261 or 262) was a Roman usurper.
Mussius Aemilianus probably was of Italian stock. He was an officer in the Roman army under Philip the Arab and Valerian. Under the latter he became praefect of Egypt. He supported the rebellion of the Macriani against Gallienus (260-261). When the Macriani were defeated he probably proclaimed himself emperor.
Gallienus sent his general Aurelius Theodotus to Egypt to deal with Aemilianus. After a short struggle Aemilianus was defeated (before 30 March 262), captured, and later strangled in prison. Also his possible supporter Memor was executed.
See also 
- s.v. "Usurpers in Egypt: Mussius Aemilianus and Memor", in Körner, Christian, "Usurpers under Gallienus", De Imperatoribus Romanis
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