Fulco I, Margrave of Milan

[2] After his father's death in 1097, Fulco inherited the family's Italian possessions, which lay mainly in Veneto, around Mantua, Padua, Treviso and Verona, while his older half brother Welf inherited the lands north of the Alps.

However, Welf did not accept this division, and unsuccessfully attempted to take these lands from Fulco after their father's death in 1097.

The powerful Bavarian line of the family, the Guelphs, did not renounce these lands until the time of Henry the Lion in 1154.

In 1070 Fulco's brother Hugh was invited to become Count of Maine, taking over the lands of their maternal grandfather, which had been under Norman or Angevin control since 1051, but had broken free.

Fulco made the family's first connections to the nobility of Ferrara, which the Este came to rule a century later.