Georg Nicolai Achen (23 July 1860 – 6 January 1912) was a Danish painter. One of the more accomplished Naturalists of his generation, from the 1890s he specialized in portraits.[1]
In the 1880s, he painted mainly landscapes but from the 1890s, he became one of Denmark's most popular portraitists, creating especially artistic paintings of members of his family. Under the influence of Vilhelm Hammershøi, his interiors with a dark female figure in pink, grey and brownish hues testify to his simple, aesthetic approach.[3] One of his most appreciated works is Drømmevinduet (The Dream Window), an oil painting of a maid peering out of one of the windows in Liselund Slot, painted in 1903.[4][5]