The marriage produced five children, three boys (Alwin, Adolf and Edo) and two girls (Anna and Helene).
A collection of critical work on the Theatre appeared in 1845 (Oldenburg theater review, 2 vols).
In 1845, Stahr and made a long journey through Italy, Switzerland and France, where he met Heinrich Heine.
This kindled a passionate relationship, and in the following years they both made several trips, wrote and worked together.
In 1849 he published a three volume novel The Republicans which appeared in Naples, 1849–50, followed by a work about the Revolution of 1848 in Prussia (The Prussian Revolution, 2 vols), plus several travel books, art-historical works (Torso.