der Kämmerer
treasurer
The head of the financial administration of a municipality or city in Germany.
Der Kämmerer der Stadt stellte den Haushaltsplan für das nächste Jahr vor.
The city's treasurer presented the budget plan for next year.

treasurer / chamberlain
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treasurer
The head of the financial administration of a municipality or city in Germany.
Der Kämmerer der Stadt stellte den Haushaltsplan für das nächste Jahr vor.
The city's treasurer presented the budget plan for next year.

'Kämmerer' (treasurer/chamberlain) is derived from the word 'die Kammer' (the chamber). Historically, he was the administrator of the treasury or the private chambers of a ruler. This origin explains the connection to finances and administration.
Früher wurden die Schätze des Königs in einer speziellen Kammer aufbewahrt.
In the past, the king's treasures were kept in a special chamber.
The context tells you whether the modern financial officer or the historical court official is meant. In sentences with 'Stadt' (city), 'Gemeinde' (municipality), or 'Haushalt' (budget), it refers to the modern meaning. With 'König' (king), 'Hof' (court), or 'Schloss' (castle/palace), the historical role is meant.
Der Kämmerer der Gemeinde warnte vor steigenden Schulden.
The municipality's treasurer warned of rising debt.
In the modern context, typical duties of the 'Kämmerer' (treasurer) are connected with a municipality's finances. He prepares the budget plan, manages the city treasury, and monitors expenditures.
Der Kämmerer muss dem Stadtrat den neuen Haushaltsplan präsentieren.
The treasurer has to present the new budget plan to the city council.
finance minister
'der Finanzminister' and 'der Kämmerer' both refer to people who manage public finances. However, the finance minister belongs to a government at a higher level, for example in a country or federal state. The 'Kämmerer' works in a city or municipality and heads the financial administration there. Learners may confuse the words because both have to do with taxes, spending, and budgets. In practical terms: in national or regional politics, you say 'Finanzminister'; for a city or municipality, 'Kämmerer' is more likely.

Der Kämmerer der Stadt sucht nach Geld für die Sanierung der Schule.
The city's treasurer is looking for money to renovate the school.
Der Finanzminister hat neue Regeln für die Steuerpolitik vorgestellt.
The finance minister has presented new rules for tax policy.