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How did August the Younger build the collection that became the Herzog August Bibliothek?

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August the Younger, Duke of Brunswick-Lüneburg-Wolfenbüttel, built his massive collection during a period of significant social and political upheaval in Europe, specifically the German wars of religion. These conflicts created a unique environment where the contents of many libraries, including those from monasteries, were dispersed and brought to the market, allowing dedicated collectors to acquire vast quantities of material.1

As a scholarly heir to the duchy, August was a passionate bibliophile who amassed a comprehensive collection of more than 100,000 titles from the 16th and 17th centuries. His dedication to the hobby was profound; he not only curated these works but also authored his own six-volume catalog of his library holdings. Established in 1604, his private collection eventually became the foundation for the Herzog August Bibliothek in Wolfenbüttel, which remains one of the finest libraries in Europe.12