Sieyès(redirected from Emmanuel Joseph Sieyes)
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(Biography) Emmanuel Joseph (ɛmanɥɛl ʒozɛf), called Abbé Sieyès. 1748–1836, French statesman, political theorist, and churchman, who became prominent during the Revolution following the publication of his pamphlet Qu'est-ce que le tiers état? (1789). He was instrumental in bringing Napoleon I to power (1799)