Marcomer was a Frankish duke (dux, leader) in the late 4th century. Gregory of Tours mentions him in his Historia Francorum, together with dukes Genobaud and Sunno. Gregory doubts that they were called kings. They crossed the Rhine, raided the Roman province of Germania and threatened Cologne, in the latter years of Western Roman Emperor Magnus Maximus (c. 388). They reportedly also led the Chatti and the Ampsivarii. Marcomer may have been a predecessor of the legendary duke Pharamond, an ancestor of the Frankish royal dynasty of the Merovingians.

See also

• Arbogast

4th century births | Frankish people

Markomer | Marcomer

Year of death missing