In the same year Grossi also published a sentimental novella in octaves, Milano la fuggitiva, also in Milanese dialect.
It is thanks to this writing that he succeeded in imposing himself on a wider panorama thanks to the publication, the following year, that he himself edited, transcribing the text from dialect to Italian.
If the passage from dialect to language meant the hardening into more conventional forms, at the same time it became the necessary instrument for a wider diffusion of the novella, which achieved extraordinary success, so much so that it immediately imposed itself as one of the most significant fruits of the new literary school.
Grossi wrote his second novella in verse, Ildegonda, directly in Italian, characterized by a broader structure than the previous one. We know of its composition from the correspondence between the friends of the Cameretta from 1818 onwards; and Manzoni, writing to Grossi from Paris on 6 April 1820, hoped to find it completed.
Ildegonda marked the definitive abandonment of dialect in his literature and was the answer to the question of which language to adopt, something that was particularly felt in the Milanese Romantic circle. Fundamental to this choice was the influence of Alessandro Manzoni who, also in terms of living habits, was very important; so much so that from 1822 to 1836 Grossi lived with him as his secretary, occupying the rooms on the ground floor of his Milanese home.
Worthy of note, also by Manzoni who inserteda still unpublished verse in the Promessi Sposi, was his next work I Longobardi alla prima crociata: a ext divided into 15 canti of 1205 octaves published in Milan in 1826. Although its success among readers was immediate and wide-ranging, the same was not true for the critics, who sparked off a fierce debate by giving negative judgments.
In 1836, on the occasion of the marriage between Alessandro Manzoni and Teresa Borri, Tommaso Grossi left his friend’s house and a year later, published his last novella in verse: Ulric and Lida.
On 17 December 1838 he married Giovanna Alfieri and, in the same year, he took the exams to become a notary, after having practiced in a firm. After passing the exams he returned to Milan where he practiced his profession, with great success: in fact, Grossi was responsible for the drafting of the act that, in 1848, sanctioned the annexation of Lombardy to Piedmont.
With the return of the Austrians to Milan, Tommaso Grossi found refuge in Lugano and Belgirate, where he met Manzoni again.
Once things had calmed down, in October 1849, Tommaso Grossi returned to Milan where he died on December 10, 1853, struck down by meningitis, without seeing its liberation.