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When and where was Johan van Oldenbarnevelt born?
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Johan van Oldenbarnevelt
Johan van Oldenbarnevelt, painting by M.J. van Mierevelt; in the Rijksmuseum, Amsterdam.
Johan van Oldenbarnevelt was born on September 14, 1547, in Amersfoort, which was located in the Spanish Netherlands at the time and is now part of the Netherlands.1