Complex sentence: Some years after La Rochefoucauld's death a new recension appeared, with some errors corrected, but still largely adulterated, and this work went unchallenged for more than a century.
Split into simpler sentences: Some years after La Rochefoucauld's death, a new recension appeared, still largely adulterated but with some errors corrected. This work went unchallenged for more than a century.