His grandson, Obizzo I, became the first Margrave of Este in 1173 and was created "Margrave of Milan and Genoa" in 1184 by the Emperor Frederick I. From thereafter, the title of Este had more importance, especially with the growth of the commune of Milan and the Republic of Genoa.
The grandson of a previous nobleman, Obizzo I, rose to prominence as the first Margrave of Este in 1173. He was later elevated by Emperor Frederick I to the title of "Margrave of Milan and Genoa" in 1184, marking an increase in the Este family's influence. As the Este family's power grew, so did its importance, especially with the rise of the commune of Milan and the Republic of Genoa.