Charles confirmed their investiture to Alfonso, in return for a considerable payment to the Imperial Chancery.

He had previously conferred the town of Carpi, forfeited by Alberto Pio as a French adherent, on the Duke.

Ferrara remained a fief of the Church, and Clement consented to acknowledge Alfonso's tenure, upon his disbursement of 100,000 ducats.

This decision saved Modena to the bastard line of Este, when Pope Clement VIII.

seized Ferrara as a lapsed fief in 1598.
In the sixty-seven years which passed between the date of Charles's coronation and the extinction of the duchy, Ferrara enjoyed the fame of the most brilliant Court in Italy, and shone with the luster conferred on it by men like Tasso and Guarini.
The few weeks which now remained before Charles left Bologna were spent for the most part in jousts and tournaments, visits to churches, and social entertainments.