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In page Christian Rønnenkamp:

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Rønnenkamp was born in Flensburg in Schleswig-Holstein. He was the son of merchant and hospital superintendent Nicolaj Christian Rønnenkamp (1757–1832,) by his first wife Catharina (Tine) Rønnenkamp née Todsen (1763–87). He was the brother of Hanna Rönnenkamp Müller (1783-1868).[1]