Educated at the Technical school of arts. Private pupil of Ejnar Nielsen.
Flauenskiold was especially fond of the isolated and picturesque scenes found at Western and northern Jutland and on the Danish island Bornholm. Flauenskiolds life-long fascination with deserted and vast landscape areas produced a long series of works from his travels in France, Germany, Italy and the United States. Flauenskiolds deserted works became an important link between the traditional romantic methods and the early modern realism. And it was these lonely sceneries that later earned him the prestigious Hielmstierne-Rosencrone award in 1933, the Bielke prize in 1935, and the Ronge award in 1936 and 1941.
The artists fall exhibition: 1925-1935.
Danish Art Forum: 1940.
Polycrome: 1942- 1944.
Aarhus Art gallery: 1965-1967.
The Town hall, Skagen: 1975.