Complex sentence: Agostina Segatori is not only known for being the mistress of Edward Dantan, she was the proprietress of the Café Tambourin, at 62 Boulevard de Clichy in Paris.
Split into simpler sentences: Agostina Segatori is not only known for being the mistress of Edward Dantan. She was the proprietress of the Café Tambourin, at 62 Boulevard de Clichy in Paris.