Early Life, Family and Training Johan Georg Otto von Rosen was born in Paris on 13 February 1843. He was the son of Adolf Eugène von Rosen, a Consul General who served public and state authorities through his work with Swedish railway construction. The stability of his early years in France was interrupted by the political upheaval of the French Revolution of 1848. This unrest forced his family to return to Sweden, a transition that w…