After leaving Karlstadt, Glauber claims to have been in Vienna (c. 1625) before travelling to Salzburg to pay his respects to his hero Paracelsus, and going across the Alps to Basel. He apparently travelled to Paris and probably Frankfurt am Main next. Around 1635 he settled to Marburg and Giessen to become Court Apothecary to the Landgrave Georg II of Hessen-Darmstadt (1626-1661). He also married Rebecca Jacobs with whom he had a son, Johann Hermann, who died by 1639. He divorced her for infidelity, though details are scant. Sometime in 1640 he moved to Amsterdam, and quickly married his second wife, Helen Cornelis of Flensburg. He may have lived with Johann Moriaen before settling at a house in Elandsgracht sometime in April-May 1643, where he established his first laboratory. Unhappy with the Amsterdam air, he briefly moved to Utrecht (Aug 1644- c.Mar 1647) and Arnhem (c. Aug 1647-1648). He returned to Amsterdam on several occasions, before leaving the Netherlands in 1650.