Complex sentence: Anne Charlotte Edgren-Leffler, duchess of Cajanello (October 1,1849-October 21,1892), was a Swedish author, the daughter of the school principal John Olof Leffler and Gustava Wilhelmina Mittag.
Split into simpler sentences: Anne Charlotte Edgren-Leffler, duchess of Cajanello (October 1,1849-October 21,1892), was a Swedish author. She was the daughter of the school principal John Olof Leffler and Gustava Wilhelmina Mittag.