Background
He was born in Hamburg, the son of merchant Gabriel Marselis, Senior (c 1575–1643), and was a brother of Selius Marselis.
He was born in Hamburg, the son of merchant Gabriel Marselis, Senior (c 1575–1643), and was a brother of Selius Marselis.
He settled in Amsterdam in 1634. His trading with King Christian IV of Denmark-Norway was partly paid with the Crown"s properties and goods. Marselis thus became the owner of several iron works and copper works in Norway, and also became one of the largest landowners in Denmark and Norway.