Denier - Brunon avec empereur Otton I

Bruno I of Cologne — brother of Otto I and appointed archbishop in 953 — was simultaneously named Duke of Lotharingia, an unprecedented concentration of ecclesiastical and secular authority in a single individual. The coinage issued under his name during 962–965 directly reflects this dual power: the imperial name appears because Bruno actively supported his brother's coronation as Holy Roman Emperor in February 962, and the alliance between Cologne and the Ottonian court was close enough that the mint made the relationship explicit in metal.

Bruno died in 965, and this type was abandoned shortly after. The Dann 377 attribution places it among the scarcer Carolingian-tradition deniers of the Rhenish episcopal mints.