Complex sentence: She was the first German woman writer to publish books without making use of a pseudonym, and during a little more than a decade, from the late 1810s to the early 1830s, her literary production turned her into the most famous woman author in Germany.
Split into simpler sentences: She was the first German woman writer to publish books without making use of a pseudonym. During a little more than a decade, from the late 1810s to the early 1830s, her literary production turned her into the most famous woman author in Germany.