His fame, already great among contemporaries, is therefore linked mainly to his works, which mark a milestone:
- For the Italian Romanticism, because he expressed high patriotic feelings, becoming one of the inspirer of the national Risorgimento, and a deep religious faith, trying to maintain a constant reference to reality and concrete life of the men;
- For the Italian literature, because with the novel I promessi sposi has laid the foundations for the modern Italian and provided the model for the novel, a narrative form previously unknown in Italian literature.
On the occasion of his death, Giuseppe Verdi composed the Requiem.

Manzoni bought the house in 1813 and will live there until his death in 1873, in an elegant but very simple ambientdestination not only of friends and acquaintances, but admirers and illustrious guests, who - present in Milan - wished to meet the great writer (between them Cavour, Garibaldi and Verdi).
The brick façade that distinguishes it is performed in the years 1862-1863,
The house after various events was donated to the City of Milan, with the constraint of recognizing the permanent and exclusive use to the Manzoni National Study Centre and was restored to return to the condition it was at the death of Manzoni.
The Museum is located at the ground floor, in two rooms overlooking the garden, and in six rooms on the first floor. Original furnishings are preserved in their entirety furniture, books, furnishings of the study and bedroom.
The notice boards and on the walls you can admire numerous portraits of Manzoni, his family and his friends; autographs and documents; the first and most rare editions of his works; paintings, prints relating to characters, landscapes, and the episodes of I Promessi Sposi.