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Rudolf Brun (born c. 1300—died Sept. 17, 1360, Zürich) was a Swiss politician who became the first burgomaster, and virtual dictator, of Zürich, and whose struggles to maintain personal power ultimately brought the city into the Swiss Confederation (1351). Although a member of the old Zürich nobility, Brun put himself at the head of a coalition of discontented knights and artisans that in 1336 overthrew the old oligarchical constitution. He drew up a new one,...