Constance Smith, Mrs Spencer Smith (née Constanze Baronne de Herbert Rathkeal; 1785–1829[1]) - wife of a British diplomat John Spencer Smith, known as Florence in several Byron's poems.
Daughter of baron Herbert, Austrian ambassador to Constantinople.
Heroine of Marquis de Salvo's book about her escape from Napoleon and Memoirs of the Duchess D' Abrantés.
Lord Byron fell in love with her in Malta in 1809.
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