The Deutsches Romantik Museum, which opened in September 2021, the adjacent historic Goethe House and the buildings that have been successively added since the end of the 19th century form the seat of the Freies Deutsches Hochstift, a research and educational institution founded in 1859.

The intention of the Deutsches Romantik Museum is to create for the first time a central place of remembrance for this key epoch in German and European cultural history. Important figures from the Hochstift collections play a central role in the permanent exhibition, including Clemens Brentano, Bettine von Arnim née Brentano, Karoline von Günderrode, Friedrich and Dorothea Schlegel, Friedrich von Hardenberg (Novalis), Achim von Arnim, Sophie Mereau, Johann Wilhelm Ritter, Ludwig Tieck and Joseph von Eichendorff. Also included, however, are protagonists of the epoch who are only represented in the collections of the Hochstift with smaller holdings or hardly at all.

In 1808, the Frankfurt merchant and banker Georg Brentano, an older brother of the poet siblings Clemens and Bettine Brentano, began acquiring land and buildings along the small river Nidda. Among them was a small half-timbered house that belonged to the Rödelheim master baker Johannes Petri. It became a meeting place for the family. In 1926, Georg Brentano's descendants sold the entire area to the city of Frankfurt. Part of the green space subsequently became a public park and only the so-called Petri Haus was preserved. In order to avert final decay, the FörderVereinPetriHaus was founded in 1998, which restored the building and set up memorial rooms on the first floor. In 2019, the Atelier PetriHaus Wolfgang Steubing which is mainly used for events was added as an extension.