Denier - Sigewin

Sigewin served as Archbishop of Cologne from 1078 until his death in 1089, a tenure marked by his navigation of the Investiture Controversy — the bitter conflict between Pope Gregory VII and Holy Roman Emperor Henry IV over the right to appoint church officials. Cologne's archbishops held both ecclesiastical and secular authority over one of the most commercially active cities on the Rhine, and the right to strike coin was among the most jealously guarded of their imperial privileges.

Kluge Kar#369 places this squarely within the episcopal coinage sequence for Cologne, a series that numismatists have used to trace the shifting political allegiances of the archbishops through Henry IV's reign.