Johan Georg Otto von Rosen (13 February 1843 – 3 March 1923) was a Swedish painter and greve (count).

[2] His father was the Consul General, Adolf Eugène von Rosen (1797–1886) who worked for public and state authorities with Swedish railway construction.

After graduating, he visited London to see the 1862 International Exhibition, where he was influenced by the paintings on Medieval and Renaissance subjects created by Hendrik Leys.

[3] Inspired by that experience, upon returning home he painted an historical scene of Sten Sture the Elder entering Stockholm.

[2] Shortly after, he set out on a tour of the Mediterranean; visiting Egypt, Palestine, Syria and Greece and returning through Hungary.