Note: While this painting was uploaded as a portrait of Alexander von Humboldt (1769-1759) and his widowed mother, this is extremely unlikely given the late 1860s clothing the figures are wearing. It is more likely von Humboldt's great-great-nephew Hans Paul von Humboldt-Dachroeden and his mother, who was widowed in 1867.
This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
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Captions
Alexander von Humboldt as a boy, holding a barometer, with his widowed mother, Maria Elisabeth (Colomb) von Humboldt, c. 1780
Alexander von Humboldt als jongen, een barometer vasthoudend, met zijn. weduwe moeder Maria Elisabeth (Colomb) von Humboldt, ca. 1780