"Nikolaus Gerhaert (c.1420 – 28 June 1473), also known as Nikolaus Gerhaert van Leyden, was a sculptor of Dutch origin, although aside from his sculptures, few details are known of his life." - (en.wikipedia.org 21.11.2019)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)
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