Overview
Christian August II, Duke of Schleswig-Holstein-Sonderburg-Augustenburg, commonly known as Christian, Duke of Augustenborg, was a Danish and German prince and statesman. During the 1850s and 1860s, he was a claimant to first duke of the whole provinces of Schleswig and Holstein, and a candidate to become king of Denmark following the death of King Frederick VII. He was the father-in-law of Princess Helena and the paternal grandfather of Augusta Victoria, German Empress and wife of Kaiser Wilhelm II.
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