Jean-François Séguier (1703–1784), a French astronomer and botanist from Nîmes
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Pierre Séguier (1588–1672),a French statesman, chancellor of France from 1635.
Philippe Collas "Maurice Dekobra: gentleman entre deux mondes", Paris, Seguier, 2001, ISBN 2-84049-264-4
Maurice Dekobra, Gentleman entre deux mondes (Séguier, Paris 2002) (ISBN 2 84049 264 4)