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O primeiro sistema obrigatório estatal no mundo moderno foi estabelecido em 1559 pelo Duque Christopher, Príncipe-eleitor de Württemberg.
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prince-electorskurfürstarchbutlerelectoral dignityelectors of germanyelector-princeimperial electorarchdapiferlay electorkurfuerstelectoral princecouncil of electorsgerman imperial electorskurfürsts of germanykurfürstenarch-butlerholy roman empire electorkurfuerstenimperial electorselectoral hatprince electorsprince-electorprince electorelectorsprinceps elector imperiielectorate of the holy roman empire
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