With the fourth generation, the kinship group reached its maximum horizontal cognatic extension. Extensive parental relationships and the achievement of the rank of marquis allowed a wide-ranging capacity for action in a large part of the kingdom. The relationship with the royal power was then always fundamental, even in the Ottonian period. Political and relational developments are therefore investigated in the different areas of activity of the Hucpoldings, namely the duchy of Spoleto, march of Tuscany, exarchate of Ravenna and eastern Emilia, especially the territory of Bologna.