Charles_Frédéric_Gerhardt
Charles Frédéric Gerhardt (21 August 1816 – 19 August 1856) was a French chemist, born in Alsace and active in Paris, Montpellier, and his native Strasbourg.
Charles Frédéric Gerhardt (21 August 1816 – 19 August 1856) was a French chemist, born in Alsace and active in Paris, Montpellier, and his native Strasbourg.
Helmina von Chézy (26 January 1783 – 28 January 1856), née Wilhelmine Christiane von Klencke, was a German journalist, poet and playwright. She is known for writing the libretto for Carl Maria von Weber's opera Euryanthe (1823) and the play Rosamunde, for which Franz Schubert composed incidental music.