Otbert/Oberto Obizzo II d'Este Margrave ⁹³²

  Notater:

Otbert (Latin Otbertus, Italian Oberto; died after 1014) was Margrave of Milan. A member of the Obertenghi family, he succeeeded his father, Otbert I, as margrave after his father's death in 975, together with his brother Adalbert. He was also count of Milan, Genoa, and Bobbio. In 1002, he joined Arduin's revolt against Henry II, Holy Roman Emperor.

Otbert/Oberto blev gift med Railenda of Como.