"Balbinus (Latin: Decimus Caelius Calvinus Balbinus Pius Augustus; died 29 July 238), was Roman Emperor with Pupienus for three months in 238, the Year of the Six Emperors." - (en.wikipedia.org 30.01.2020)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)