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.
His great-grandson, Obizzo I, became the first Margrave of Este in 1173 and was elevated to "Margrave of Milan and Genoa" in 1184 by Emperor Frederick I. From then on, the title of Este gained greater significance, particularly with the expansion of the commune of Milan and the Republic of Genoa.